Authorization bypass through user-controlled key in Zammad - #VU153215
Published: October 3, 2026
Vulnerability identifier: #VU153215
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to authorization bypass through a user-controlled key in the Core Workflow perform endpoint when processing requests that name records. A remote user can name a record in a request to disclose sensitive information.
Ticket data and stored passwords remain protected.
Affected software
Zammad
Remediation
Install security update from vendor's website.
Zammad - update to 7.1.3