MEDIUM 5.3

GHSA-3vgw-585j-4m45

BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for CVE-2025-10284

Details

The `unarchive` internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools (e.g. GNU tar) which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extraction path traversal was never fixed. On systems with GNU tar < 1.34 (Ubuntu 20.04, Debian Buster, CentOS 7, many Docker base images), a malicious archive can write files outside the intended extraction directory.

Are you affected?

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Affected packages

PyPI / bbot

Introduced in: 2.3.1 Fixed in: 2.8.5

Fix pip install --upgrade 'bbot>=2.8.5'

References

https://github.com/blacklanternsecurity/bbot/security/advisories/GHSA-3vgw-585j-4m45 [WEB]
https://nvd.nist.gov/vuln/detail/CVE-2026-12565 [ADVISORY]
https://github.com/blacklanternsecurity/bbot/commit/4fb38fd6e [WEB]
https://github.com/blacklanternsecurity/bbot [PACKAGE]