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.
Published: 2026-04-20
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized file read via sandbox escape
Action: Patch immediately
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-9p3r-hh9g-5cmg OpenClaw: Sandbox escape via TOCTOU race in remote FS bridge readFile
History

Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 20 Apr 2026 23:30:00 +0000

Type Values Removed Values Added
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.
Title OpenClaw < 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-367
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-21T19:49:41.570Z

Reserved: 2026-04-20T14:01:13.151Z

Link: CVE-2026-41296

cve-icon Vulnrichment

Updated: 2026-04-21T16:02:59.206Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-21T00:16:29.993

Modified: 2026-04-27T15:06:33.037

Link: CVE-2026-41296

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-21T15:45:07Z

Weaknesses