CVE-2026-34838 | BDVDB-2026-324501 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12026-04-02Record published in the CVE List.
2. Version 22026-04-03Most recent update recorded in the CVE List.