CVE-2026-41395

OpenClaw prior to 2026.3.28 is affected by a webhook replay vulnerability in Plivo V3 signature verification. The system canonicalizes query ordering for signatures but hashes the raw verification URL for replay detection, allowing an attacker who captures a valid signed webhook to reorder query ...

PT-2026-35779

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.28 Description An issue exists in Plivo V3 signature verification where the system canonicalizes query ordering for signatures but hashes raw URLs for replay detection. This allows attackers to reorder query...

GHSA-8689-GM9G-JGR6 OpenClaw: Voice-call Plivo V3 webhook replay key uses unsorted URL, allowing replay via query-parameter reordering

Summary Plivo V3 signature verification canonicalized query ordering, but replay detection hashed the raw verification URL. Reordering query parameters preserved a valid signature while producing a fresh replay-cache key. Impact An attacker who captured one valid signed Plivo V3 webhook could...