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Description

OpenClaw before 2026.4.22 contains a time-of-check/time-of-use race condition in OpenShell sandbox filesystem writes that allows attackers to redirect writes outside the intended mount root. Attackers can exploit symlink swaps during filesystem operations to bypass sandbox restrictions and write files outside the local mount root.

PUBLISHED Reserved 2026-05-05 | Published 2026-05-06 | Updated 2026-05-07 | Assigner VulnCheck




MEDIUM: 6.0CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

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

Problem types

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

Product status

Default status
unaffected

Any version before 2026.4.22
affected

2026.4.22 (semver)
unaffected

Credits

vladimir tokarev (@VladimirEliTokarev) reporter

References

github.com/...enclaw/security/advisories/GHSA-wppj-c6mr-83jj (GitHub Security Advisory (GHSA-wppj-c6mr-83jj)) vendor-advisory

github.com/...ommit/7be82d4fd1193bcb7e44ee38838f00bf924ffa76 (Patch Commit) patch

www.vulncheck.com/...condition-in-openshell-fs-bridge-writes (VulnCheck Advisory: OpenClaw < 2026.4.22 - Symlink Swap Race Condition in OpenShell FS Bridge Writes) third-party-advisory

cve.org (CVE-2026-44112)

nvd.nist.gov (CVE-2026-44112)

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