CVE-2026-28474

CRITICAL

9.8

Beschreibung

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and gain unauthorized access to restricted conversations.

CVE Details

CVSS v3.1 Bewertung9.8

SchweregradCRITICAL

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/5/2026

Zuletzt geandert3/9/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-863

Referenzen

https://github.com/openclaw/openclaw/commit/6b4b6049b47c3329a7014509594647826669892d(disclosure@vulncheck.com)

https://github.com/openclaw/openclaw/security/advisories/GHSA-r5h9-vjqc-hq3r(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/openclaw-nextcloud-talk-allowlist-bypass-via-actorname-display-name-spoofing(disclosure@vulncheck.com)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.