Missing Authentication Vulnerability in Trudesk Product by Polonel
CVE-2026-114400

8.2HIGH

Key Information:

Vendor

Polonel

Status
Trudesk
Vendor
CVE Published:
21 October 2026

What is CVE-2026-114400?

Trudesk versions up to 1.2.11 contain a missing authentication vulnerability that enables unauthenticated users to download sensitive ticket attachments stored in the /uploads directory. This occurs because the express.static middleware is configured to serve files from the public/ directory prior to validating access to the /uploads mount. As a result, attackers who can guess or know the ticket ObjectId and filename can exploit this flaw to gain unauthorized access to confidential information.

Affected Version(s)

trudesk 0 <= 1.2.11

References

https://hackmd.io/@leediay/multiple-vuln-trudesk-1211
third-party-advisory
https://github.com/polonel/trudesk/blob/v1.2.11/src/middl...
technical-description
https://github.com/polonel/trudesk/blob/v1.2.11/src/middl...
technical-description

CVSS V4

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

leediay153 from Viettel Post
.