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.

Project Subscriptions

Vendors Products
Openclaw Subscribe
Openclaw Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-8689-gm9g-jgr6 OpenClaw: Voice-call Plivo V3 webhook replay key uses unsorted URL, allowing replay via query-parameter reordering
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 29 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenClaw < 2026.3.28 - Webhook Replay via Query Parameter Reordering in Plivo V3
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-325
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.2, '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'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-29T13:27:00.547Z

Reserved: 2026-04-20T14:13:45.349Z

Link: CVE-2026-41395

cve-icon Vulnrichment

Updated: 2026-04-29T13:26:48.281Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-28T19:37:42.880

Modified: 2026-04-30T20:45:25.643

Link: CVE-2026-41395

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T23:15:43Z

Weaknesses