Medium severity · published Oct 21, 2026
CVE-2026-114401
Trudesk through 1.2.11 Username Enumeration via Regex Injection in /api/v1/login
New
5.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TR
trudesk · polonel
through 1.2.11 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-114401
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-114401
github.com
https://github.com/polonel/trudesk
github.com
https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v1/common.js#L45-L65
github.com
https://github.com/polonel/trudesk/blob/v1.2.11/src/models/user.js#L310-L319
hackmd.io
https://hackmd.io/@leediay/multiple-vuln-trudesk-1211
www.vulncheck.com
https://www.vulncheck.com/advisories/trudesk-through-1.2.11-username-enumeration-via-regex-injection-in-api-v1-login
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