What is CVE-2026-41395?

CVE-2026-41395 is a high-severity vulnerability in Openclaw, classified under Missing Cryptographic Step. CVSS score: 7.5/10. Published 2026-04-28.

How severe is CVE-2026-41395?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Openclaw

CVE-2026-41395

OpenClaw before 2026.3.28 contains a webhook replay vulnerability in Plivo V3 signature verification that canonicalizes query ordering for signatures but hashes raw URLs for replay detection. Attackers can reorder query parameters to bypas…

EPSS: 0.000 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Openclaw — versions 0, 2026.3.28

Weakness classification (CWE)

CWE-325 — Missing Cryptographic Step

References

GitHub Security Advisory (GHSA-8689-gm9g-jgr6) (vendor-advisory, Vendor Advisory)
VulnCheck Advisory: OpenClaw < 2026.3.28 - Webhook Replay via Query Parameter Reordering in Plivo V3 (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-41395?: CVE-2026-41395 is a high-severity vulnerability in Openclaw, classified under Missing Cryptographic Step. CVSS score: 7.5/10. Published 2026-04-28.
How severe is CVE-2026-41395?: High severity. CVSS v3 base score is 7.5 out of 10.