CVE-2026-114401

Description

Trudesk through 1.2.11 contains a regular expression injection vulnerability that allows unauthenticated attackers to enumerate usernames by submitting regex patterns to POST /api/v1/login. Attackers can send alternations or prefixes like (admin|root) or a.* and distinguish 'Invalid User' from 'Invalid Password' responses to discover valid accounts.

References

• https://github.com/polonel/trudesk
• https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v1/common.js#L45-L65
• https://github.com/polonel/trudesk/blob/v1.2.11/src/models/user.js#L310-L319
• https://hackmd.io/@leediay/multiple-vuln-trudesk-1211
• https://www.vulncheck.com/advisories/trudesk-through-1.2.11-username-enumeration-via-regex-injection-in-api-v1-login