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.
https://www.vulncheck.com/advisories/openclaw-arbitrary-file-read-via-grep-e-flag-policy-bypass
https://github.com/openclaw/openclaw/security/advisories/GHSA-3xfw-4pmr-4xc5
https://github.com/openclaw/openclaw/commit/c6ee14d60e4cbd6a82f9b2d74ebeb1e8ee814964
Published: 2026-03-19
Updated: 2026-03-25
Base Score: 6.8
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
Base Score: 6
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.0005