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Description

OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability in the fs-bridge writeFile commit step that uses an unanchored container path during the final move operation. An attacker can exploit a time-of-check-time-of-use race condition by modifying parent paths inside the sandbox to redirect committed files outside the validated writable path within the container mount namespace.

PUBLISHED Reserved 2026-03-17 | Published 2026-03-31 | Updated 2026-03-31 | Assigner VulnCheck




MEDIUM: 5.8CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
MEDIUM: 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Problem types

Time-of-check Time-of-use (TOCTOU) Race Condition

Product status

Default status
unaffected

Any version before 2026.3.11
affected

2026.3.11 (semver)
unaffected

Credits

Qi Deng (@qi-scape) reporter

References

github.com/...enclaw/security/advisories/GHSA-xvx8-77m6-gwg6 (GitHub Security Advisory (GHSA-xvx8-77m6-gwg6)) third-party-advisory

www.vulncheck.com/...ss-via-unanchored-writefile-commit-path (VulnCheck Advisory: OpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Unanchored writeFile Commit Path) third-party-advisory

cve.org (CVE-2026-32977)

nvd.nist.gov (CVE-2026-32977)

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