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.

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 interce…

EPSS: 0.000 (4.7th percentile) — read the EPSS interpretation.

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.

Affected products

Openclaw — versions 0, 2026.3.31

Weakness classification (CWE)

CWE-184 — Incomplete List of Disallowed Inputs

References

GitHub Security Advisory (GHSA-7ggg-pvrf-458v) (vendor-advisory, Vendor Advisory)
Patch Commit (Patch, patch)
VulnCheck Advisory: OpenClaw < 2026.3.31 - Environment Variable Bypass in Package Index URL Handling (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.