Vulnerability Details CVE-2026-27606
Rollup is a module bundler for JavaScript. Versions prior to 2.80.0, 3.30.0, and 4.59.0 of the Rollup module bundler (specifically v4.x and present in current source) is vulnerable to an Arbitrary File Write via Path Traversal. Insecure file name sanitization in the core engine allows an attacker to control output filenames (e.g., via CLI named inputs, manual chunk aliases, or malicious plugins) and use traversal sequences (`../`) to overwrite files anywhere on the host filesystem that the build process has permissions for. This can lead to persistent Remote Code Execution (RCE) by overwriting critical system or user configuration files. Versions 2.80.0, 3.30.0, and 4.59.0 contain a patch for the issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.014
EPSS Ranking 70.2%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-27606
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cpe:2.3:a:rollupjs:rollup:3.0.0
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cpe:2.3:a:rollupjs:rollup:3.0.1
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cpe:2.3:a:rollupjs:rollup:3.1.0
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cpe:2.3:a:rollupjs:rollup:3.10.0
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cpe:2.3:a:rollupjs:rollup:3.10.1
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cpe:2.3:a:rollupjs:rollup:3.11.0
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cpe:2.3:a:rollupjs:rollup:3.12.0
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cpe:2.3:a:rollupjs:rollup:3.12.1
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cpe:2.3:a:rollupjs:rollup:3.13.0
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cpe:2.3:a:rollupjs:rollup:3.14.0
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cpe:2.3:a:rollupjs:rollup:3.15.0
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cpe:2.3:a:rollupjs:rollup:3.16.0
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cpe:2.3:a:rollupjs:rollup:3.17.0
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cpe:2.3:a:rollupjs:rollup:3.17.1
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cpe:2.3:a:rollupjs:rollup:3.17.2
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cpe:2.3:a:rollupjs:rollup:3.17.3
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cpe:2.3:a:rollupjs:rollup:3.17.3-0
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cpe:2.3:a:rollupjs:rollup:3.17.3-1
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cpe:2.3:a:rollupjs:rollup:3.18.0
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cpe:2.3:a:rollupjs:rollup:3.18.0-0
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cpe:2.3:a:rollupjs:rollup:3.19.0
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cpe:2.3:a:rollupjs:rollup:3.19.1
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cpe:2.3:a:rollupjs:rollup:3.2.0
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cpe:2.3:a:rollupjs:rollup:3.2.1
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cpe:2.3:a:rollupjs:rollup:3.2.2
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cpe:2.3:a:rollupjs:rollup:3.2.3
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cpe:2.3:a:rollupjs:rollup:3.2.4
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cpe:2.3:a:rollupjs:rollup:3.2.5
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cpe:2.3:a:rollupjs:rollup:3.20.0
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cpe:2.3:a:rollupjs:rollup:3.20.1
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cpe:2.3:a:rollupjs:rollup:3.20.2
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cpe:2.3:a:rollupjs:rollup:3.20.3
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cpe:2.3:a:rollupjs:rollup:3.20.4
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cpe:2.3:a:rollupjs:rollup:3.20.5
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cpe:2.3:a:rollupjs:rollup:3.20.6
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cpe:2.3:a:rollupjs:rollup:3.20.7
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cpe:2.3:a:rollupjs:rollup:3.21.0
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cpe:2.3:a:rollupjs:rollup:3.21.1
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cpe:2.3:a:rollupjs:rollup:3.21.2
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cpe:2.3:a:rollupjs:rollup:3.21.3
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cpe:2.3:a:rollupjs:rollup:3.21.4
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cpe:2.3:a:rollupjs:rollup:3.21.5
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cpe:2.3:a:rollupjs:rollup:3.21.6
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cpe:2.3:a:rollupjs:rollup:3.21.7
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cpe:2.3:a:rollupjs:rollup:3.21.8
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cpe:2.3:a:rollupjs:rollup:3.22.0
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cpe:2.3:a:rollupjs:rollup:3.22.1
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cpe:2.3:a:rollupjs:rollup:3.23.0
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cpe:2.3:a:rollupjs:rollup:3.23.1
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cpe:2.3:a:rollupjs:rollup:3.24.0
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cpe:2.3:a:rollupjs:rollup:3.24.1
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cpe:2.3:a:rollupjs:rollup:3.25.0
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cpe:2.3:a:rollupjs:rollup:3.25.1
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cpe:2.3:a:rollupjs:rollup:3.25.2
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cpe:2.3:a:rollupjs:rollup:3.25.3
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cpe:2.3:a:rollupjs:rollup:3.26.0
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cpe:2.3:a:rollupjs:rollup:3.26.1
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cpe:2.3:a:rollupjs:rollup:3.26.2
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cpe:2.3:a:rollupjs:rollup:3.26.3
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cpe:2.3:a:rollupjs:rollup:3.27.0
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cpe:2.3:a:rollupjs:rollup:3.27.1
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cpe:2.3:a:rollupjs:rollup:3.27.2
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cpe:2.3:a:rollupjs:rollup:3.28.0
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cpe:2.3:a:rollupjs:rollup:3.28.1
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cpe:2.3:a:rollupjs:rollup:3.29.0
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cpe:2.3:a:rollupjs:rollup:3.29.1
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cpe:2.3:a:rollupjs:rollup:3.29.2
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cpe:2.3:a:rollupjs:rollup:3.29.3
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cpe:2.3:a:rollupjs:rollup:3.29.4
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cpe:2.3:a:rollupjs:rollup:3.29.5
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cpe:2.3:a:rollupjs:rollup:3.3.0
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cpe:2.3:a:rollupjs:rollup:3.4.0
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cpe:2.3:a:rollupjs:rollup:3.5.0
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cpe:2.3:a:rollupjs:rollup:3.5.1
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cpe:2.3:a:rollupjs:rollup:3.6.0
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cpe:2.3:a:rollupjs:rollup:3.7.0
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cpe:2.3:a:rollupjs:rollup:3.7.1
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cpe:2.3:a:rollupjs:rollup:3.7.2
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cpe:2.3:a:rollupjs:rollup:3.7.3
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cpe:2.3:a:rollupjs:rollup:3.7.4
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cpe:2.3:a:rollupjs:rollup:3.7.5
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cpe:2.3:a:rollupjs:rollup:3.8.0
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cpe:2.3:a:rollupjs:rollup:3.8.1
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cpe:2.3:a:rollupjs:rollup:3.9.0
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cpe:2.3:a:rollupjs:rollup:3.9.1
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cpe:2.3:a:rollupjs:rollup:4.0.0
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cpe:2.3:a:rollupjs:rollup:4.0.0-0
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cpe:2.3:a:rollupjs:rollup:4.0.0-1
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cpe:2.3:a:rollupjs:rollup:4.0.0-2
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cpe:2.3:a:rollupjs:rollup:4.0.0-25
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cpe:2.3:a:rollupjs:rollup:4.0.0-3
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cpe:2.3:a:rollupjs:rollup:4.0.0-4
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cpe:2.3:a:rollupjs:rollup:4.0.0-6
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cpe:2.3:a:rollupjs:rollup:4.0.1
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cpe:2.3:a:rollupjs:rollup:4.0.2
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cpe:2.3:a:rollupjs:rollup:4.1.0
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cpe:2.3:a:rollupjs:rollup:4.1.1
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cpe:2.3:a:rollupjs:rollup:4.1.2
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cpe:2.3:a:rollupjs:rollup:4.1.3
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cpe:2.3:a:rollupjs:rollup:4.1.4
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cpe:2.3:a:rollupjs:rollup:4.1.5
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cpe:2.3:a:rollupjs:rollup:4.1.6
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cpe:2.3:a:rollupjs:rollup:4.10.0
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cpe:2.3:a:rollupjs:rollup:4.11.0
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cpe:2.3:a:rollupjs:rollup:4.12.0
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cpe:2.3:a:rollupjs:rollup:4.12.1
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cpe:2.3:a:rollupjs:rollup:4.13.0
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cpe:2.3:a:rollupjs:rollup:4.13.1
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cpe:2.3:a:rollupjs:rollup:4.13.1-0
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cpe:2.3:a:rollupjs:rollup:4.13.1-1
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cpe:2.3:a:rollupjs:rollup:4.13.2
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cpe:2.3:a:rollupjs:rollup:4.14.0
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cpe:2.3:a:rollupjs:rollup:4.14.1
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cpe:2.3:a:rollupjs:rollup:4.14.2
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cpe:2.3:a:rollupjs:rollup:4.14.3
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cpe:2.3:a:rollupjs:rollup:4.15.0
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cpe:2.3:a:rollupjs:rollup:4.16.0
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cpe:2.3:a:rollupjs:rollup:4.16.1
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cpe:2.3:a:rollupjs:rollup:4.16.2
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cpe:2.3:a:rollupjs:rollup:4.16.3
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cpe:2.3:a:rollupjs:rollup:4.16.4
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cpe:2.3:a:rollupjs:rollup:4.17.0
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cpe:2.3:a:rollupjs:rollup:4.17.1
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cpe:2.3:a:rollupjs:rollup:4.17.2
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cpe:2.3:a:rollupjs:rollup:4.18.0
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cpe:2.3:a:rollupjs:rollup:4.18.1
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cpe:2.3:a:rollupjs:rollup:4.19.0
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cpe:2.3:a:rollupjs:rollup:4.19.1
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cpe:2.3:a:rollupjs:rollup:4.19.2
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cpe:2.3:a:rollupjs:rollup:4.2.0
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cpe:2.3:a:rollupjs:rollup:4.20.0
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cpe:2.3:a:rollupjs:rollup:4.21.0
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cpe:2.3:a:rollupjs:rollup:4.21.1
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cpe:2.3:a:rollupjs:rollup:4.21.2
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cpe:2.3:a:rollupjs:rollup:4.21.3
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cpe:2.3:a:rollupjs:rollup:4.22.0
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cpe:2.3:a:rollupjs:rollup:4.22.1
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cpe:2.3:a:rollupjs:rollup:4.22.2
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cpe:2.3:a:rollupjs:rollup:4.22.3
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cpe:2.3:a:rollupjs:rollup:4.22.3-0
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cpe:2.3:a:rollupjs:rollup:4.22.4
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cpe:2.3:a:rollupjs:rollup:4.22.5
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cpe:2.3:a:rollupjs:rollup:4.23.0
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cpe:2.3:a:rollupjs:rollup:4.24.0
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cpe:2.3:a:rollupjs:rollup:4.24.1
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cpe:2.3:a:rollupjs:rollup:4.24.2
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cpe:2.3:a:rollupjs:rollup:4.24.3
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cpe:2.3:a:rollupjs:rollup:4.24.4
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cpe:2.3:a:rollupjs:rollup:4.25.0
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cpe:2.3:a:rollupjs:rollup:4.25.0-0
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cpe:2.3:a:rollupjs:rollup:4.26.0
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cpe:2.3:a:rollupjs:rollup:4.27.0
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cpe:2.3:a:rollupjs:rollup:4.27.0-0
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cpe:2.3:a:rollupjs:rollup:4.27.0-1
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cpe:2.3:a:rollupjs:rollup:4.27.1
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cpe:2.3:a:rollupjs:rollup:4.27.1-0
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cpe:2.3:a:rollupjs:rollup:4.27.1-1
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cpe:2.3:a:rollupjs:rollup:4.27.2
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cpe:2.3:a:rollupjs:rollup:4.27.3
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cpe:2.3:a:rollupjs:rollup:4.27.4
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cpe:2.3:a:rollupjs:rollup:4.28.0
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cpe:2.3:a:rollupjs:rollup:4.28.1
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cpe:2.3:a:rollupjs:rollup:4.29.0
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cpe:2.3:a:rollupjs:rollup:4.29.0-0
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cpe:2.3:a:rollupjs:rollup:4.29.0-1
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cpe:2.3:a:rollupjs:rollup:4.29.0-2
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cpe:2.3:a:rollupjs:rollup:4.29.1
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cpe:2.3:a:rollupjs:rollup:4.29.2
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cpe:2.3:a:rollupjs:rollup:4.3.0
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cpe:2.3:a:rollupjs:rollup:4.3.1
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cpe:2.3:a:rollupjs:rollup:4.30.0
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cpe:2.3:a:rollupjs:rollup:4.30.0-0
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cpe:2.3:a:rollupjs:rollup:4.30.0-1
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cpe:2.3:a:rollupjs:rollup:4.30.1
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cpe:2.3:a:rollupjs:rollup:4.31.0
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cpe:2.3:a:rollupjs:rollup:4.31.0-0
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cpe:2.3:a:rollupjs:rollup:4.32.0
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cpe:2.3:a:rollupjs:rollup:4.32.1
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cpe:2.3:a:rollupjs:rollup:4.33.0
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cpe:2.3:a:rollupjs:rollup:4.33.0-0
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cpe:2.3:a:rollupjs:rollup:4.34.0
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cpe:2.3:a:rollupjs:rollup:4.34.1
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cpe:2.3:a:rollupjs:rollup:4.34.2
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cpe:2.3:a:rollupjs:rollup:4.34.3
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cpe:2.3:a:rollupjs:rollup:4.34.4
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cpe:2.3:a:rollupjs:rollup:4.34.5
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cpe:2.3:a:rollupjs:rollup:4.34.6
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cpe:2.3:a:rollupjs:rollup:4.34.7
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cpe:2.3:a:rollupjs:rollup:4.34.8
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cpe:2.3:a:rollupjs:rollup:4.34.9
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cpe:2.3:a:rollupjs:rollup:4.35.0
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cpe:2.3:a:rollupjs:rollup:4.36.0
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cpe:2.3:a:rollupjs:rollup:4.37.0
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cpe:2.3:a:rollupjs:rollup:4.38.0
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cpe:2.3:a:rollupjs:rollup:4.39.0
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cpe:2.3:a:rollupjs:rollup:4.4.0
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cpe:2.3:a:rollupjs:rollup:4.4.1
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cpe:2.3:a:rollupjs:rollup:4.40.0
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cpe:2.3:a:rollupjs:rollup:4.40.1
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cpe:2.3:a:rollupjs:rollup:4.40.2
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cpe:2.3:a:rollupjs:rollup:4.41.0
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cpe:2.3:a:rollupjs:rollup:4.41.1
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cpe:2.3:a:rollupjs:rollup:4.41.2
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cpe:2.3:a:rollupjs:rollup:4.42.0
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cpe:2.3:a:rollupjs:rollup:4.43.0
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cpe:2.3:a:rollupjs:rollup:4.44.0
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cpe:2.3:a:rollupjs:rollup:4.44.1
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cpe:2.3:a:rollupjs:rollup:4.44.2
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cpe:2.3:a:rollupjs:rollup:4.45.0
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cpe:2.3:a:rollupjs:rollup:4.45.1
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cpe:2.3:a:rollupjs:rollup:4.45.2
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cpe:2.3:a:rollupjs:rollup:4.45.3
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cpe:2.3:a:rollupjs:rollup:4.46.0
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cpe:2.3:a:rollupjs:rollup:4.46.1
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cpe:2.3:a:rollupjs:rollup:4.46.2
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cpe:2.3:a:rollupjs:rollup:4.46.3
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cpe:2.3:a:rollupjs:rollup:4.46.4
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cpe:2.3:a:rollupjs:rollup:4.47.0
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cpe:2.3:a:rollupjs:rollup:4.47.1
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cpe:2.3:a:rollupjs:rollup:4.48.0
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cpe:2.3:a:rollupjs:rollup:4.48.1
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cpe:2.3:a:rollupjs:rollup:4.49.0
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cpe:2.3:a:rollupjs:rollup:4.5.0
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cpe:2.3:a:rollupjs:rollup:4.5.1
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cpe:2.3:a:rollupjs:rollup:4.5.2
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cpe:2.3:a:rollupjs:rollup:4.50.0
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cpe:2.3:a:rollupjs:rollup:4.50.1
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cpe:2.3:a:rollupjs:rollup:4.50.2
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cpe:2.3:a:rollupjs:rollup:4.51.0
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cpe:2.3:a:rollupjs:rollup:4.52.0
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cpe:2.3:a:rollupjs:rollup:4.52.1
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cpe:2.3:a:rollupjs:rollup:4.52.2
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cpe:2.3:a:rollupjs:rollup:4.52.3
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cpe:2.3:a:rollupjs:rollup:4.52.4
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cpe:2.3:a:rollupjs:rollup:4.52.5
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cpe:2.3:a:rollupjs:rollup:4.53.0
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cpe:2.3:a:rollupjs:rollup:4.53.1
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cpe:2.3:a:rollupjs:rollup:4.53.2
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cpe:2.3:a:rollupjs:rollup:4.53.3
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cpe:2.3:a:rollupjs:rollup:4.53.4
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cpe:2.3:a:rollupjs:rollup:4.53.5
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cpe:2.3:a:rollupjs:rollup:4.54.0
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cpe:2.3:a:rollupjs:rollup:4.55.0
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cpe:2.3:a:rollupjs:rollup:4.55.1
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cpe:2.3:a:rollupjs:rollup:4.55.1-0
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cpe:2.3:a:rollupjs:rollup:4.55.2
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cpe:2.3:a:rollupjs:rollup:4.55.3
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cpe:2.3:a:rollupjs:rollup:4.56.0
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cpe:2.3:a:rollupjs:rollup:4.57.0
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cpe:2.3:a:rollupjs:rollup:4.57.1
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cpe:2.3:a:rollupjs:rollup:4.58.0
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cpe:2.3:a:rollupjs:rollup:4.6.0
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cpe:2.3:a:rollupjs:rollup:4.6.1
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cpe:2.3:a:rollupjs:rollup:4.7.0
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cpe:2.3:a:rollupjs:rollup:4.8.0
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cpe:2.3:a:rollupjs:rollup:4.9.0
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cpe:2.3:a:rollupjs:rollup:4.9.1
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cpe:2.3:a:rollupjs:rollup:4.9.2
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cpe:2.3:a:rollupjs:rollup:4.9.3
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cpe:2.3:a:rollupjs:rollup:4.9.4
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cpe:2.3:a:rollupjs:rollup:4.9.5
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cpe:2.3:a:rollupjs:rollup:4.9.6