Vulnerability in Openclaw
CVE-2026-41391
OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate package management operations by injecting malicious index URLs through unsanitized environment variables.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (5.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Openclaw — versions 0, 2026.3.31
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-7ggg-pvrf-458v (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/7ae1bb0c7799fd0cbd2d4de7b0f5b8039837ab8d (Patch, patch)
- www.vulncheck.com/advisories/openclaw-environment-variable-bypass-in-package-in… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41391?
- CVE-2026-41391 is a medium-severity vulnerability in Openclaw, classified under Incomplete List of Disallowed Inputs. CVSS score: 5.3/10. Published 2026-04-28.
- How severe is CVE-2026-41391?
- Medium severity. CVSS v3 base score is 5.3 out of 10.