CVE-2026-28449

Medium

Description

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing and cause integrity or availability issues.

SeverityMedium

CVSS6.5

Exploit probability—

ProductOpenclaw

PublishedMar 19, 2026

First seenMar 19, 2026

Weakness typeCWE-294CWE-294

How to fix

Update

openclaw openclaw2026.2.25 or later
openclaw2026.2.25 or later

Patches

github.com/openclaw/openclaw/commit/d512163d686ad6741783e7119ddb3437f493dbbc

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-r9q5-c7qc-p26w

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.2.25	2026.2.25
openclawnpm	v < 2026.2.25	2026.2.25

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