CVE-2026-50054

high

Description

The vulnerability exists due to an authorization validation loophole inside the mailbox delegation processing subsystem, allowing a delegated account profile to bypass boundary checks and perform actions outside its explicitly granted system scope.

References

https://www.securityweek.com/zimbra-update-patches-critical-vulnerabilities/

Details

Source: Mitre, NVD

Published: 2026-07-23

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High