CVE-2026-28474

CRITICAL

9.8

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/5/2026

Ultima modificacion3/9/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-863

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

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