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Description

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.

PUBLISHED Reserved 2026-02-23 | Published 2026-03-19 | Updated 2026-03-19 | Assigner VulnCheck




MEDIUM: 5.8CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

MEDIUM: 5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Problem types

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

Product status

Default status
unaffected

Any version before 2026.3.2
affected

Credits

tdjackey reporter

References

github.com/...enclaw/security/advisories/GHSA-r54r-wmmq-mh84 (GitHub Security Advisory (GHSA-r54r-wmmq-mh84)) third-party-advisory

github.com/...ommit/7dac9b05dd9d38dd3929637f26fa356fd8bdd107 (Patch Commit) patch

www.vulncheck.com/...xtraction-parent-symlink-race-condition (VulnCheck Advisory: OpenClaw < 2026.3.2 - Arbitrary File Write via ZIP Extraction Parent Symlink Race Condition) third-party-advisory

cve.org (CVE-2026-27670)

nvd.nist.gov (CVE-2026-27670)

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