CVE-2026-27670

OpenClaw versions prior to 2026.3.2 contain a race condition vulnerability in ZIP extraction that allows local attackers to write files outside the intended destination directory. Attackers can exploit a time-of-check-time-of-use race between path validation and file write operations by rebinding parent directory symlinks to redirect writes outside the extraction root.

Score

CVSS 4.0 5.8 Medium

Status

Analyzed - disclosure@vulncheck.com

Published

2026-03-19

Last modified

2026-06-23

Weaknesses

CWE-367

Affected products

• Openclaw (Openclaw)

References

• https://github.com/openclaw/openclaw/commit/7dac9b05dd9d38dd3929637f26fa356fd8bdd107
• https://github.com/openclaw/openclaw/security/advisories/GHSA-r54r-wmmq-mh84
• https://www.vulncheck.com/advisories/openclaw-arbitrary-file-write-via-zip-extraction-parent-symlink-race-condition