Vulnerability Database

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Total vulnerabilities in the database

OpenClaw: OpenShell FS bridge reads pin and verify the opened file before returning bytes — openclaw

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

Summary

OpenShell FS bridge reads pin and verify the opened file before returning bytes

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.4.21
  • Fixed version: 2026.4.22

Impact

A time-of-check/time-of-use race around OpenShell sandbox filesystem reads could let a symlink swap cause bytes outside the intended mount root to be read.

Fix

OpenShell reads now open the file with no-follow semantics where available, validate the pinned file descriptor against the canonical mount root, reject unsafe hardlink/symlink cases, and use a strict fallback ancestor walk on platforms without fd-path readback.

Fix Commit(s)

  • 95119017c847c737bd113f0bff728c4666d79c45

Verification

  • The fix commit is contained in the public v2026.4.22 tag.
  • [email protected] is published on npm and the compiled package contains the fix.
  • Focused regression coverage for this path passed before publication.

OpenClaw thanks @VladimirEliTokarev for reporting.

  • Published: May 4, 2026
  • Updated: May 6, 2026
  • GHSA: GHSA-5h3g-6xhh-rg6p
  • Severity: Medium
  • Exploit:
  • CISA KEV:

No technical information available.

CWEs:

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