Vulnerability in Openclaw
CVE-2026-34425
OpenClaw versions prior to commit 8aceaf5 contain a preflight validation bypass vulnerability in shell-bleed protection that allows attackers to execute blocked script content by using piped or complex command forms that the parser fails to recognize. Attackers can craft commands such as piped execution, command substitution, or subshell invocation to bypass the validateScriptFileForShellBleed() validation checks and execute arbitrary script content that would otherwise be blocked.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-fvx6-pj3r-5q4q (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/8aceaf5d0f0ec552b75a792f7f0a3bfa5b091513 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-shell-bleed-protection-preflight-validati… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-34425?
- CVE-2026-34425 is a medium-severity vulnerability in Openclaw, classified under Incomplete List of Disallowed Inputs. CVSS score: 5.4/10. Published 2026-04-02.
- How severe is CVE-2026-34425?
- Medium severity. CVSS v3 base score is 5.4 out of 10.