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CVE-2026-34838
CRITICAL9.9
Beschreibung
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.
CVE Details
CVSS v3.1 Bewertung9.9
SchweregradCRITICAL
CVSS VektorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AngriffsvektorNETWORK
KomplexitatLOW
Erforderliche PrivilegienLOW
BenutzerinteraktionNONE
Veroffentlicht4/2/2026
Zuletzt geandert4/3/2026
Quellenvd
Honeypot-Sichtungen0
Schwachen (CWE)
CWE-502
Referenzen
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)
IOC Korrelationen
Keine Korrelationen erfasst
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