CVE-2026-42603: high-severity vulnerability in OWASP-BLT BLT
OWASP BLT: pre-commit-fix.yaml executes untrusted fork code via pull_request_target
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.3%
OWASP BLT is a QA testing and vulnerability disclosure platform that encompasses websites, apps, git repositories, and more. Prior to 2.1.2, .github/workflows/pre-commit-fix.yaml uses pull_request_target (privileged trigger) but checks out and executes code directly from the attacker's fork, enabling RCE with write permissions. This vulnerability is fixed in 2.1.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
OWASP-BLT · BLTRelated CVEs — OWASP-BLT BLT
In the same product, most dangerous first.