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CVE-2026-34838

CRITICAL

9.9

Descripcion

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar object into a setting string, an authenticated attacker can achieve Arbitrary File Write, leading directly to Remote Code Execution (RCE) on the server. This issue has been patched in versions 6.8.156, 25.0.90, and 26.0.12.

Detalles CVE

Puntuacion CVSS v3.19.9

SeveridadCRITICAL

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado4/2/2026

Ultima modificacion4/3/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-502

Referencias

https://github.com/Intermesh/groupoffice/releases/tag/v25.0.90(security-advisories@github.com)

https://github.com/Intermesh/groupoffice/releases/tag/v26.0.12(security-advisories@github.com)

https://github.com/Intermesh/groupoffice/releases/tag/v6.8.156(security-advisories@github.com)

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-h22j-frrf-5vxq(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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