User Impersonation Affecting @openclaw/nextcloud-talk package, versions <2026.2.6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-OPENCLAWNEXTCLOUDTALK-15322683
- published20 Feb 2026
- disclosed17 Feb 2026
- creditJoshua Rogers
Introduced: 17 Feb 2026
CVE-2026-28474 (opens in a new tab)How to fix?
Upgrade @openclaw/nextcloud-talk to version 2026.2.6 or higher.
Overview
@openclaw/nextcloud-talk is an OpenClaw Nextcloud Talk channel plugin
Affected versions of this package are vulnerable to User Impersonation via the actor.name field in webhook payloads. An attacker can gain unauthorized access to direct messages or rooms by spoofing their display name to match an allowlisted user identifier.