CVE-2026-41395 HIGH

CVE-2026-41395: OpenClaw < 2026.3.28 - Webhook Replay via Query Parameter Reordering in Plivo V3

Vendor Openclaw
Product OpenClaw
Weakness CWE-325
Published April 28, 2026
Last update April 29, 2026
View on NVD All CVEs

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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 bypass replay cache detection and trigger duplicate voice-call processing with a captured valid signed webhook.

Key dates

02Disclosure timeline

April 28, 2026 CVE published
April 29, 2026 Record updated