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TI-2026-78782 Aliases CVE-2026-114401GHSA-m446-w75v-4fjm

Username enumeration via regex injection in Trudesk login

Priority HIGH 70CWE-943Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Trudesk through 1.2.11 contains a regular expression injection flaw that lets unauthenticated remote attackers enumerate valid usernames. Crafted regex patterns sent to the login endpoint produce different responses for valid and invalid accounts, revealing which usernames exist (CWE-943). A public exploit proof of concept is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00441 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
poloneltrudeskup to 1.2.11—No fix listedCNA
  • trudesk Vendorpolonel Affected up to 1.2.11 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:trudesk_project:trudesk:*:*:*:*:*:*:*:*up to 1.2.11Vulnerablepolonel
  • cpe:2.3:a:trudesk_project:trudesk:*:*:*:*:*:*:*:* Versions up to 1.2.11 Vulnerable ·polonel

Remediation

The sources list no fixed version for Trudesk.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114401
  2. 2026-10-21 Alias added: GHSA-m446-w75v-4fjm
  3. 2026-10-21 CISA SSVC decision points changed
  4. 2026-10-21 Priority changed: MEDIUM → HIGH

References

Exploit 1

Patch 2

Other 1

  • TI-2026-78773 Authorization bypass in Trudesk ticket API lets users read other tickets CVSS 4.0MEDIUM 6.9
  • TI-2026-78781 Trudesk Missing Authentication for Ticket Attachments via /uploads CVSS 4.0HIGH 8.2
  • TI-2026-78778 Missing authentication on Trudesk debug routes enables data deletion CVSS 4.0HIGH 8.3
  • TI-2026-78777 MongoDB $where injection in Trudesk ticket search API CVSS 4.0HIGH 7.1
  • TI-2021-20836 TruDesk Help Desk/Ticketing Solution v1.1.11 is vulnerable to a Cross-Site Request… CVSS 3.1MEDIUM 6.5
  • TI-2023-11856 Trudesk v1.2.6 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 5.4
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences