OpenClaw versions prior to 2026.2.21 contain a stdin-only policy bypass vulnerability in the grep tool within tools.exec.safeBins that allows attackers to read arbitrary files by supplying a pattern via the -e flag parameter. Attackers can include a positional filename operand to bypass file access restrictions and read sensitive files .env from the working directory.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Openclaw Openclaw
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
|
— |
2026.2.21
|
References 3
https://github.com/openclaw/openclaw/commit/c6ee14d60e4cbd6a82f9b2d74ebeb1e8ee8…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-3xfw-4pmr-4xc5
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-arbitrary-file-read-via-grep-e-fl…
disclosure@vulncheck.com