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.
History

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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-20T23:08:10.194Z

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

Link: CVE-2026-41296

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-41296

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-21T00:30:22Z