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Description

OpenClaw before 2026.4.10 contains a time-of-check-time-of-use vulnerability in the validateScriptFileForShellBleed function that allows local attackers to bypass workspace boundary checks. An attacker with workspace write access can race-condition swap the target file between validation and preflight read, causing the validator to inspect a different file identity than the one that passed the initial boundary check.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-05 | Updated 2026-05-05 | Assigner VulnCheck




LOW: 2.0CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

LOW: 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Problem types

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

Product status

Default status
unaffected

Any version before 2026.4.10
affected

2026.4.10 (semver)
unaffected

Credits

kikayli reporter

References

github.com/...enclaw/security/advisories/GHSA-gj9q-8w99-mp8j (GitHub Security Advisory (GHSA-gj9q-8w99-mp8j)) vendor-advisory

github.com/...ommit/b024fae9e5df43e9b69b2daebb72be3469d52e91 (Patch Commit) patch

www.vulncheck.com/...tion-in-exec-script-preflight-validator (VulnCheck Advisory: OpenClaw < 2026.4.10 - Time-of-Check-Time-of-Use (TOCTOU) Race Condition in exec Script Preflight Validator) third-party-advisory

cve.org (CVE-2026-43529)

nvd.nist.gov (CVE-2026-43529)

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