CVE-2026-12567: BBOT: Symlink-Following Arbitrary Write via github_workflows Module

June 18, 2026

The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.

References

github.com/advisories/GHSA-rvp7-w75q-9fv2
github.com/blacklanternsecurity/bbot/commit/16d9c42b6
github.com/blacklanternsecurity/bbot/security/advisories/GHSA-rvp7-w75q-9fv2
nvd.nist.gov/vuln/detail/CVE-2026-12567

Code Behaviors & Features

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