PT-2026-33863 · Openclaw+1 · Openclaw

Antaisecuritylab · Published 2026-04-03 · Updated 2026-04-21 · CVE-2026-41296

OSV

CVSS v4.0

9.4

Critical

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

Summary

Sandbox escape via TOCTOU race in remote FS bridge readFile

Current Maintainer Triage

• Normalized severity: critical
• Assessment: v2026.3.28 remote sandbox reads still do path-check then separate file read, so the TOCTOU sandbox escape remains present in the latest shipped tag.

Affected Packages / Versions

• Package: openclaw (npm)
• Latest published npm version: 2026.3.31
• Vulnerable version range: <=2026.3.28
• Patched versions: >= 2026.3.31
• First stable tag containing the fix: v2026.3.31

Fix Commit(s)

• 121870a08583033ed6a0ed73d9ffea32991252bb — 2026-03-31T09:55:51+09:00

OpenClaw thanks @AntAISecurityLab for reporting.

Fix

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2026-41296

GHSA-9P3R-HH9G-5CMG

Affected Products

Openclaw

References · 7

• https://github.com/openclaw/openclaw/commit/121870a08583033ed6a0ed73d9ffea32991252bb · Patch
• https://github.com/openclaw/openclaw/security/advisories/GHSA-9p3r-hh9g-5cmg · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-9p3r-hh9g-5cmg · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41296 · Security Note
• https://github.com/openclaw/openclaw/releases/tag/v2026.3.31 · Note
• https://github.com/openclaw/openclaw · Note
• https://vulncheck.com/advisories/openclaw-sandbox-escape-via-toctou-race-in-remote-fs-bridge-readfile · Note