CVE-2026-114401CWE-943

CVE-2026-114401

Medium · published October 21, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
37.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00439 · 37.1th percentile
Weakness
CWE-943 · Improper Neutralization of Special Elements in Data Query Logic
Published
2026-10-21T17:18Z
References (6)
https://github.com/polonel/trudesk · [email protected]https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v1/common.js#L45-L65 · [email protected]https://github.com/polonel/trudesk/blob/v1.2.11/src/models/user.js#L310-L319 · [email protected]https://hackmd.io/@leediay/multiple-vuln-trudesk-1211 · [email protected]https://www.vulncheck.com/advisories/trudesk-through-1.2.11-username-enumeration-via-regex-injection-in-api-v1-login · [email protected]https://hackmd.io/@leediay/multiple-vuln-trudesk-1211 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 23 OCT 03:55Z
    EPSS moved — → 0%
    epss
  • 21 OCT 12:39Z
    Trudesk through 1.2.11 Username Enumeration via Regex Injection in /api/v1/login
    cvelistv5
  • 21 OCT 12:39Z
    Trudesk through 1.2.11 Username Enumeration via Regex Injection in /api/v1/login
    cvelistv5