Vulnerability Details CVE-2026-106455
Backstage is an open framework for building developer portals. From 0.11.12 until 1.14.7 and 1.15.5, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs plugin configuration in techdocs. An authenticated attacker with control over a TechDocs source repository could cause a documentation build to retrieve and publish data from network locations reachable by the build environment. Exposure depends on deployment topology, build mode, and target endpoint protections. Modern cloud metadata services that require tokens or special headers are not directly accessible through the affected behavior. This issue is fixed in @backstage/plugin-techdocs-node versions 1.14.7 and 1.15.5.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.7%
CVSS Severity
CVSS v3 Score 7.7
Products affected by CVE-2026-106455
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cpe:2.3:a:linuxfoundation:backstage:0.71.1
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cpe:2.3:a:linuxfoundation:backstage:1.0.0
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cpe:2.3:a:linuxfoundation:backstage:1.0.1
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cpe:2.3:a:linuxfoundation:backstage:1.0.2
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cpe:2.3:a:linuxfoundation:backstage:1.0.3
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cpe:2.3:a:linuxfoundation:backstage:1.1.0
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cpe:2.3:a:linuxfoundation:backstage:1.1.1
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cpe:2.3:a:linuxfoundation:backstage:1.10.0
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cpe:2.3:a:linuxfoundation:backstage:1.10.1
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cpe:2.3:a:linuxfoundation:backstage:1.10.13
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cpe:2.3:a:linuxfoundation:backstage:1.11.0
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cpe:2.3:a:linuxfoundation:backstage:1.11.1
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cpe:2.3:a:linuxfoundation:backstage:1.12.0
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cpe:2.3:a:linuxfoundation:backstage:1.12.1
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cpe:2.3:a:linuxfoundation:backstage:1.13.0
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cpe:2.3:a:linuxfoundation:backstage:1.13.1
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cpe:2.3:a:linuxfoundation:backstage:1.13.10
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cpe:2.3:a:linuxfoundation:backstage:1.13.11
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cpe:2.3:a:linuxfoundation:backstage:1.13.2
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cpe:2.3:a:linuxfoundation:backstage:1.14.0
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cpe:2.3:a:linuxfoundation:backstage:1.14.1
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cpe:2.3:a:linuxfoundation:backstage:1.14.2
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cpe:2.3:a:linuxfoundation:backstage:1.15.0
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cpe:2.3:a:linuxfoundation:backstage:1.16.0
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cpe:2.3:a:linuxfoundation:backstage:1.17.0
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cpe:2.3:a:linuxfoundation:backstage:1.17.1
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cpe:2.3:a:linuxfoundation:backstage:1.17.2
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cpe:2.3:a:linuxfoundation:backstage:1.17.3
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cpe:2.3:a:linuxfoundation:backstage:1.17.4
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cpe:2.3:a:linuxfoundation:backstage:1.17.5
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cpe:2.3:a:linuxfoundation:backstage:1.18.0
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cpe:2.3:a:linuxfoundation:backstage:1.18.1
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cpe:2.3:a:linuxfoundation:backstage:1.18.2
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cpe:2.3:a:linuxfoundation:backstage:1.18.3
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cpe:2.3:a:linuxfoundation:backstage:1.18.4
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cpe:2.3:a:linuxfoundation:backstage:1.18.5
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cpe:2.3:a:linuxfoundation:backstage:1.19.0
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cpe:2.3:a:linuxfoundation:backstage:1.19.1
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cpe:2.3:a:linuxfoundation:backstage:1.19.2
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cpe:2.3:a:linuxfoundation:backstage:1.19.3
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cpe:2.3:a:linuxfoundation:backstage:1.19.4
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cpe:2.3:a:linuxfoundation:backstage:1.19.5
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cpe:2.3:a:linuxfoundation:backstage:1.19.6
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cpe:2.3:a:linuxfoundation:backstage:1.2.0
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cpe:2.3:a:linuxfoundation:backstage:1.2.1
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cpe:2.3:a:linuxfoundation:backstage:1.2.2
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cpe:2.3:a:linuxfoundation:backstage:1.20.0
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cpe:2.3:a:linuxfoundation:backstage:1.20.1
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cpe:2.3:a:linuxfoundation:backstage:1.20.2
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cpe:2.3:a:linuxfoundation:backstage:1.20.3
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cpe:2.3:a:linuxfoundation:backstage:1.20.4
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cpe:2.3:a:linuxfoundation:backstage:1.21.0
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cpe:2.3:a:linuxfoundation:backstage:1.21.1
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cpe:2.3:a:linuxfoundation:backstage:1.22.0
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cpe:2.3:a:linuxfoundation:backstage:1.22.1
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cpe:2.3:a:linuxfoundation:backstage:1.22.2
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cpe:2.3:a:linuxfoundation:backstage:1.22.3
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cpe:2.3:a:linuxfoundation:backstage:1.23.0
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cpe:2.3:a:linuxfoundation:backstage:1.23.1
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cpe:2.3:a:linuxfoundation:backstage:1.23.2
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cpe:2.3:a:linuxfoundation:backstage:1.23.3
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cpe:2.3:a:linuxfoundation:backstage:1.23.4
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cpe:2.3:a:linuxfoundation:backstage:1.24.0
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cpe:2.3:a:linuxfoundation:backstage:1.24.1
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cpe:2.3:a:linuxfoundation:backstage:1.24.2
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cpe:2.3:a:linuxfoundation:backstage:1.25.0
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cpe:2.3:a:linuxfoundation:backstage:1.25.1
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cpe:2.3:a:linuxfoundation:backstage:1.25.2
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cpe:2.3:a:linuxfoundation:backstage:1.26.0
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cpe:2.3:a:linuxfoundation:backstage:1.26.1
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cpe:2.3:a:linuxfoundation:backstage:1.26.2
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cpe:2.3:a:linuxfoundation:backstage:1.26.3
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cpe:2.3:a:linuxfoundation:backstage:1.26.4
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cpe:2.3:a:linuxfoundation:backstage:1.26.5
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cpe:2.3:a:linuxfoundation:backstage:1.27.0
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cpe:2.3:a:linuxfoundation:backstage:1.27.1
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cpe:2.3:a:linuxfoundation:backstage:1.27.2
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cpe:2.3:a:linuxfoundation:backstage:1.27.3
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cpe:2.3:a:linuxfoundation:backstage:1.27.4
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cpe:2.3:a:linuxfoundation:backstage:1.27.5
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cpe:2.3:a:linuxfoundation:backstage:1.27.6
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cpe:2.3:a:linuxfoundation:backstage:1.27.7
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cpe:2.3:a:linuxfoundation:backstage:1.28.0
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cpe:2.3:a:linuxfoundation:backstage:1.28.1
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cpe:2.3:a:linuxfoundation:backstage:1.28.2
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cpe:2.3:a:linuxfoundation:backstage:1.28.3
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cpe:2.3:a:linuxfoundation:backstage:1.28.4
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cpe:2.3:a:linuxfoundation:backstage:1.29.0
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cpe:2.3:a:linuxfoundation:backstage:1.29.1
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cpe:2.3:a:linuxfoundation:backstage:1.29.2
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cpe:2.3:a:linuxfoundation:backstage:1.3.0
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cpe:2.3:a:linuxfoundation:backstage:1.3.1
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cpe:2.3:a:linuxfoundation:backstage:1.30.0
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cpe:2.3:a:linuxfoundation:backstage:1.30.1
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cpe:2.3:a:linuxfoundation:backstage:1.30.2
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cpe:2.3:a:linuxfoundation:backstage:1.30.3
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cpe:2.3:a:linuxfoundation:backstage:1.30.4
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cpe:2.3:a:linuxfoundation:backstage:1.31.0
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cpe:2.3:a:linuxfoundation:backstage:1.31.1
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cpe:2.3:a:linuxfoundation:backstage:1.31.2
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cpe:2.3:a:linuxfoundation:backstage:1.31.3
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cpe:2.3:a:linuxfoundation:backstage:1.31.4
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cpe:2.3:a:linuxfoundation:backstage:1.32.0
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cpe:2.3:a:linuxfoundation:backstage:1.32.1
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cpe:2.3:a:linuxfoundation:backstage:1.32.2
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cpe:2.3:a:linuxfoundation:backstage:1.32.3
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cpe:2.3:a:linuxfoundation:backstage:1.32.4
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cpe:2.3:a:linuxfoundation:backstage:1.32.5
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cpe:2.3:a:linuxfoundation:backstage:1.32.6
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cpe:2.3:a:linuxfoundation:backstage:1.33.0
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cpe:2.3:a:linuxfoundation:backstage:1.33.1
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cpe:2.3:a:linuxfoundation:backstage:1.33.2
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cpe:2.3:a:linuxfoundation:backstage:1.33.3
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cpe:2.3:a:linuxfoundation:backstage:1.33.4
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cpe:2.3:a:linuxfoundation:backstage:1.33.5
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cpe:2.3:a:linuxfoundation:backstage:1.33.6
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cpe:2.3:a:linuxfoundation:backstage:1.34.0
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cpe:2.3:a:linuxfoundation:backstage:1.34.1
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cpe:2.3:a:linuxfoundation:backstage:1.34.2
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cpe:2.3:a:linuxfoundation:backstage:1.35.0
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cpe:2.3:a:linuxfoundation:backstage:1.35.1
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cpe:2.3:a:linuxfoundation:backstage:1.36.0
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cpe:2.3:a:linuxfoundation:backstage:1.36.1
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cpe:2.3:a:linuxfoundation:backstage:1.37.0
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cpe:2.3:a:linuxfoundation:backstage:1.37.1
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cpe:2.3:a:linuxfoundation:backstage:1.38.0
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cpe:2.3:a:linuxfoundation:backstage:1.38.1
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cpe:2.3:a:linuxfoundation:backstage:1.39.0
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cpe:2.3:a:linuxfoundation:backstage:1.39.1
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cpe:2.3:a:linuxfoundation:backstage:1.4.0
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cpe:2.3:a:linuxfoundation:backstage:1.40.0
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cpe:2.3:a:linuxfoundation:backstage:1.40.1
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cpe:2.3:a:linuxfoundation:backstage:1.40.2
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cpe:2.3:a:linuxfoundation:backstage:1.41.0
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cpe:2.3:a:linuxfoundation:backstage:1.41.1
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cpe:2.3:a:linuxfoundation:backstage:1.41.2
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cpe:2.3:a:linuxfoundation:backstage:1.42.0
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cpe:2.3:a:linuxfoundation:backstage:1.42.1
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cpe:2.3:a:linuxfoundation:backstage:1.42.2
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cpe:2.3:a:linuxfoundation:backstage:1.42.3
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cpe:2.3:a:linuxfoundation:backstage:1.42.4
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cpe:2.3:a:linuxfoundation:backstage:1.42.5
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cpe:2.3:a:linuxfoundation:backstage:1.43.0
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cpe:2.3:a:linuxfoundation:backstage:1.43.1
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cpe:2.3:a:linuxfoundation:backstage:1.43.2
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cpe:2.3:a:linuxfoundation:backstage:1.43.3
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cpe:2.3:a:linuxfoundation:backstage:1.44.0
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cpe:2.3:a:linuxfoundation:backstage:1.44.1
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cpe:2.3:a:linuxfoundation:backstage:1.44.2
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cpe:2.3:a:linuxfoundation:backstage:1.45.0
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cpe:2.3:a:linuxfoundation:backstage:1.45.1
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cpe:2.3:a:linuxfoundation:backstage:1.45.2
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cpe:2.3:a:linuxfoundation:backstage:1.45.3
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cpe:2.3:a:linuxfoundation:backstage:1.45.4
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cpe:2.3:a:linuxfoundation:backstage:1.46.0
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cpe:2.3:a:linuxfoundation:backstage:1.46.1
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cpe:2.3:a:linuxfoundation:backstage:1.46.2
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cpe:2.3:a:linuxfoundation:backstage:1.46.3
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cpe:2.3:a:linuxfoundation:backstage:1.46.4
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cpe:2.3:a:linuxfoundation:backstage:1.46.5
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cpe:2.3:a:linuxfoundation:backstage:1.46.6
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cpe:2.3:a:linuxfoundation:backstage:1.46.7
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cpe:2.3:a:linuxfoundation:backstage:1.47.0
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cpe:2.3:a:linuxfoundation:backstage:1.47.1
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cpe:2.3:a:linuxfoundation:backstage:1.47.2
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cpe:2.3:a:linuxfoundation:backstage:1.47.3
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cpe:2.3:a:linuxfoundation:backstage:1.47.4
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cpe:2.3:a:linuxfoundation:backstage:1.48.0
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cpe:2.3:a:linuxfoundation:backstage:1.48.1
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cpe:2.3:a:linuxfoundation:backstage:1.48.2
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cpe:2.3:a:linuxfoundation:backstage:1.48.3
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cpe:2.3:a:linuxfoundation:backstage:1.48.4
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cpe:2.3:a:linuxfoundation:backstage:1.48.5
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cpe:2.3:a:linuxfoundation:backstage:1.48.6
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cpe:2.3:a:linuxfoundation:backstage:1.49.0
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cpe:2.3:a:linuxfoundation:backstage:1.49.1
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cpe:2.3:a:linuxfoundation:backstage:1.49.2
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cpe:2.3:a:linuxfoundation:backstage:1.49.3
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cpe:2.3:a:linuxfoundation:backstage:1.49.4
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cpe:2.3:a:linuxfoundation:backstage:1.49.5
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cpe:2.3:a:linuxfoundation:backstage:1.49.6
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cpe:2.3:a:linuxfoundation:backstage:1.49.7
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cpe:2.3:a:linuxfoundation:backstage:1.5.0
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cpe:2.3:a:linuxfoundation:backstage:1.5.1
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cpe:2.3:a:linuxfoundation:backstage:1.50.0
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cpe:2.3:a:linuxfoundation:backstage:1.50.1
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cpe:2.3:a:linuxfoundation:backstage:1.50.2
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cpe:2.3:a:linuxfoundation:backstage:1.50.3
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cpe:2.3:a:linuxfoundation:backstage:1.50.4
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cpe:2.3:a:linuxfoundation:backstage:1.50.5
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cpe:2.3:a:linuxfoundation:backstage:1.51.0
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cpe:2.3:a:linuxfoundation:backstage:1.6.0
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cpe:2.3:a:linuxfoundation:backstage:1.7.0
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cpe:2.3:a:linuxfoundation:backstage:1.7.1
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cpe:2.3:a:linuxfoundation:backstage:1.7.2
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cpe:2.3:a:linuxfoundation:backstage:1.8.0
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cpe:2.3:a:linuxfoundation:backstage:1.8.1
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cpe:2.3:a:linuxfoundation:backstage:1.8.2
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cpe:2.3:a:linuxfoundation:backstage:1.8.3
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cpe:2.3:a:linuxfoundation:backstage:1.9.0
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cpe:2.3:a:linuxfoundation:backstage:1.9.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:0.11.12
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.0.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.0.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.1.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.1.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.1.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.1.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.10.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.5
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.11.6
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.10
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.11
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.12
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.13
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.14
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.15
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.16
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.5
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.6
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.7
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.8
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.12.9
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.10
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.11
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.5
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.6
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.7
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.8
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.13.9
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.5
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.14.6
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.15.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.15.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.15.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.15.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.15.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.2.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.2.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.3.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.3.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.5
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.4.6
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.5.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.5.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.6.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.6.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.3
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.4
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.5
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.7.6
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.8.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.8.1
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.8.2
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.9.0
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cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:1.9.1