Vulnerability Details CVE-2026-56748
Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview permissions to execute arbitrary code as the Cribl server process via a crafted Git repository containing a symbolic link in the pack's functions directory.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 44.6%
CVSS Severity
CVSS v3 Score 8.8
References
Products affected by CVE-2026-56748
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cpe:2.3:a:cribl:cribl_stream:4.0
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cpe:2.3:a:cribl:cribl_stream:4.0.1
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cpe:2.3:a:cribl:cribl_stream:4.0.2
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cpe:2.3:a:cribl:cribl_stream:4.0.3
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cpe:2.3:a:cribl:cribl_stream:4.0.4
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cpe:2.3:a:cribl:cribl_stream:4.1
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cpe:2.3:a:cribl:cribl_stream:4.1.1
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cpe:2.3:a:cribl:cribl_stream:4.1.2
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cpe:2.3:a:cribl:cribl_stream:4.1.3
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cpe:2.3:a:cribl:cribl_stream:4.10.0
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cpe:2.3:a:cribl:cribl_stream:4.10.1
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cpe:2.3:a:cribl:cribl_stream:4.11.0
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cpe:2.3:a:cribl:cribl_stream:4.11.1
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cpe:2.3:a:cribl:cribl_stream:4.12.0
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cpe:2.3:a:cribl:cribl_stream:4.12.1
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cpe:2.3:a:cribl:cribl_stream:4.12.2
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cpe:2.3:a:cribl:cribl_stream:4.13.0
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cpe:2.3:a:cribl:cribl_stream:4.13.1
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cpe:2.3:a:cribl:cribl_stream:4.13.2
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cpe:2.3:a:cribl:cribl_stream:4.13.3
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cpe:2.3:a:cribl:cribl_stream:4.14.0
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cpe:2.3:a:cribl:cribl_stream:4.14.1
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cpe:2.3:a:cribl:cribl_stream:4.15.0
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cpe:2.3:a:cribl:cribl_stream:4.15.1
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cpe:2.3:a:cribl:cribl_stream:4.16.0
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cpe:2.3:a:cribl:cribl_stream:4.16.1
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cpe:2.3:a:cribl:cribl_stream:4.17.0
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cpe:2.3:a:cribl:cribl_stream:4.17.1
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cpe:2.3:a:cribl:cribl_stream:4.18.0
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cpe:2.3:a:cribl:cribl_stream:4.18.1
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cpe:2.3:a:cribl:cribl_stream:4.2
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cpe:2.3:a:cribl:cribl_stream:4.2.1
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cpe:2.3:a:cribl:cribl_stream:4.2.2
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cpe:2.3:a:cribl:cribl_stream:4.3
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cpe:2.3:a:cribl:cribl_stream:4.3.1
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cpe:2.3:a:cribl:cribl_stream:4.4
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cpe:2.3:a:cribl:cribl_stream:4.4.1
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cpe:2.3:a:cribl:cribl_stream:4.4.2
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cpe:2.3:a:cribl:cribl_stream:4.4.3
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cpe:2.3:a:cribl:cribl_stream:4.4.4
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cpe:2.3:a:cribl:cribl_stream:4.5
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cpe:2.3:a:cribl:cribl_stream:4.5.1
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cpe:2.3:a:cribl:cribl_stream:4.6
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cpe:2.3:a:cribl:cribl_stream:4.6.1
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cpe:2.3:a:cribl:cribl_stream:4.7
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cpe:2.3:a:cribl:cribl_stream:4.7.1
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cpe:2.3:a:cribl:cribl_stream:4.7.2
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cpe:2.3:a:cribl:cribl_stream:4.7.3
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cpe:2.3:a:cribl:cribl_stream:4.8
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cpe:2.3:a:cribl:cribl_stream:4.8.1
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cpe:2.3:a:cribl:cribl_stream:4.8.2
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cpe:2.3:a:cribl:cribl_stream:4.9
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cpe:2.3:a:cribl:cribl_stream:4.9.1
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cpe:2.3:a:cribl:cribl_stream:4.9.2
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cpe:2.3:a:cribl:cribl_stream:4.9.3