PT-2026-108048 · Zimbra · Zimbra Collaboration Suite

CVE-2026-50054

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Published

2026-10-08

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Updated

2026-10-08

CVSS v3.1

7.1

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
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.

Fix

Improper Privilege Management

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Weakness Enumeration

Related Identifiers

CVE-2026-50054

Affected Products

Zimbra Collaboration Suite