Is CVE-2026-50054 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-50054?

CVE-2026-50054 has a CVSS v3 severity of HIGH (7.1).

Back

CVE-2026-50054

Description

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.