Vulnerability Description
OpenClaw (npm package 'openclaw') versions >= 2026.5.28 and < 2026.8.1 mishandle archive listings in the tar.bz2 skill installer: bounded command-output suffixes were treated as complete listings of the archive. A crafted .tar.bz2/.tbz2 skill archive can push prohibited entries out of both retained listings so that entry-count and size checks pass, and the archive is then extracted in full. If an operator approves installation of such a malicious or compromised skill archive, over-limit files or entry counts are persisted in the skill tools directory, consuming disk space or inodes. The issue bypasses OpenClaw's extraction budgets but does not by itself execute archive contents. Fixed in 2026.8.1.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-6xpv-wwr5-265h
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-extraction-limit-b
FAQ
What is CVE-2026-100542?
CVE-2026-100542 is a vulnerability with a CVSS score of 3.1 (LOW). OpenClaw (npm package 'openclaw') versions >= 2026.5.28 and < 2026.8.1 mishandle archive listings in the tar.bz2 skill installer: bounded command-output suffixes were treated as complete listings of t...
How severe is CVE-2026-100542?
CVE-2026-100542 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100542?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.