Trudesk through 1.2.11 Authorization Bypass via GET /api/v1/tickets/:uid

Advisories

Trudesk through 1.2.11 Authorization Bypass via GET /api/v1/tickets/:uid

Severity: medium
Date: 10/21/2026
Affecting: trudesk <= 1.2.11
CVE: CVE-2026-114392
CWE: CWE-639 Authorization Bypass Through User-Controlled Key
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References: https://hackmd.io/@leediay/multiple-vuln-trudesk-1211
https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v1/tickets.js#L721-L740
https://github.com/polonel/trudesk
Credit: leediay153 from Viettel Post
Description: Trudesk through 1.2.11 contains an authorization bypass vulnerability that allows authenticated users to read tickets outside their groups via GET /api/v1/tickets/:uid. Attackers can enumerate sequential ticket uids to read every ticket's subject, issue, comments, owner and assignee, because the apiTickets.single handler skips group membership checks.

Ready to get Started?

Explore VulnCheck, a next-generation Cyber Threat Intelligence platform, which provides exploit and vulnerability intelligence to help you prioritize and remediate vulnerabilities that matter.

Vulnerability Prioritization
Prioritize vulnerabilities that matter based on the threat landscape and defer vulnerabilities that don't.
Early Warning System
Real-time alerting of changes in the vulnerability landscape so that you can take action before the attacks start.

Schedule a Demo