CVE-2026-41296

HIGH

OpenClaw < 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile

Title source: cna
STIX 2.1

Description

OpenClaw before 2026.3.31 contains a time-of-check-time-of-use race condition in the remote filesystem bridge readFile function that allows sandbox escape. Attackers can exploit the separate path validation and file read operations to bypass sandbox restrictions and read arbitrary files.

References (3)

Core 3
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-9p3r-hh9g-5cmg)
https://github.com/openclaw/openclaw/security/advisories/GHSA-9p3r-hh9g-5cmg
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile
https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-toctou-race-in-remote-fs-bridge-readfile

Scores

CVSS v3 8.2
EPSS 0.0020
EPSS Percentile 9.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-367
Status published
Products (4)
npm/openclaw 0 - 2026.3.31npm
OpenClaw/OpenClaw < 2026.3.31
openclaw/openclaw < 2026.3.31
OpenClaw/OpenClaw 2026.3.31
Published Apr 21, 2026
Tracked Since Apr 21, 2026