# CVE-2026-114401: Trudesk through 1.2.11 Username Enumeration via Regex Injection in /api/v1/login


- **Severity:** Medium 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`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 21 Oct 2026
- **Updated:** 21 Oct 2026
- **Also known as:** GHSA-m446-w75v-4fjm

## What is CVE-2026-114401?

CVE-2026-114401 is a medium-severity vulnerability in polonel trudesk, published on 21 Oct 2026. 

### Official 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.

Weakness: CWE-943 (Improper Neutralization of Special Elements in Data Query Logic)

## Which versions are affected by CVE-2026-114401?

It affects 1 product.


Products: Trudesk Project Trudesk.

## How do I fix CVE-2026-114401?

No fix has been published for CVE-2026-114401 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-114401 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114401 exists.

## Other vulnerabilities in polonel trudesk

- [CVE-2022-2023](https://insights.sbomify.com/CVE-2022-2023/): Incorrect Use of Privileged APIs in polonel/trudesk (critical 10.0)
- [CVE-2022-1770](https://insights.sbomify.com/CVE-2022-1770/): Improper Privilege Management in polonel/trudesk (critical 9.9)
- [CVE-2022-2128](https://insights.sbomify.com/CVE-2022-2128/): Unrestricted Upload of File with Dangerous Type in polonel/trudesk (critical 9.6)
- [CVE-2022-1931](https://insights.sbomify.com/CVE-2022-1931/): Incorrect Synchronization in polonel/trudesk (critical 9.1)
- [CVE-2022-1947](https://insights.sbomify.com/CVE-2022-1947/): Use of Incorrect Operator in polonel/trudesk (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-114401 and fix it if it is affected.

What it is: CVE-2026-114401 is a medium-severity vulnerability in polonel trudesk, published on 21 Oct 2026. 
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114401 exists.

Affected product: polonel trudesk. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-114401/ (Markdown: https://insights.sbomify.com/CVE-2026-114401/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-114401
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-114401
- OSV: https://osv.dev/vulnerability/CVE-2026-114401

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-114401/
Summaries are generated and may contain mistakes; the official description above is the record.