Vulnerability in Openclaw
CVE-2026-34426
OpenClaw versions prior to commit b57b680 contain an approval bypass vulnerability due to inconsistent environment variable normalization between approval and execution paths, allowing attackers to inject attacker-controlled environment variables into execution without approval system validation. Attackers can exploit differing normalization logic to discard non-portable keys during approval processing while accepting them at execution time, bypassing operator review and potentially influencing runtime behavior including execution of attacker-controlled binaries.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.9% 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: 0.005 · change: +0.002
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-98ch-45wp-ch47 (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/pull/59182 (issue-tracking, Patch, Issue Tracking)
- github.com/openclaw/openclaw/commit/b57b680c0c34de907d57f60c38fb358e82aef8f7 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-approval-bypass-via-environment-variable-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-34426?
- CVE-2026-34426 is a high-severity vulnerability in Openclaw, classified under Incomplete List of Disallowed Inputs. CVSS score: 7.6/10. Published 2026-04-02.
- How severe is CVE-2026-34426?
- High severity. CVSS v3 base score is 7.6 out of 10.