MinorCritical vulnerability

CVE-2026-50054 (CVSS 7.1)

NVD · officialPublished Oct 8, 2026Risk 23/100

An authorization flaw in Zimbra Collaboration Suite’s GrantRightsRequest allows an attacker with access to an authenticated account to grant another local account the loginAs right, creating persistent mailbox access and mail-sending authority that survives password changes and session expiry.

Technical details

CVSS

7.1

AV:NetworkAC:LowPR:LowUI:NoneC:HighI:LowA:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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