---
id: CVE-2026-94040
title: A flaw has been found in vas3k TaxHacker up to 0.8.5
summary: >-
  A flaw has been found in vas3k TaxHacker up to 0.8.5. Affected by this
  vulnerability is the function testLLMProviderAction of the file
  app/(app)/apps/settings/actions.ts. Executing a manipulation of the argument
  provider/apiKey/model/bas…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: vas3k
product: TaxHacker
affected:
  - TaxHacker 0.8.0
  - TaxHacker 0.8.1
  - TaxHacker 0.8.2
  - TaxHacker 0.8.3
  - TaxHacker 0.8.4
  - TaxHacker 0.8.5
published: '2026-09-20'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T13:17:16.737'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94040'
references:
  - url: 'https://github.com/vas3k/TaxHacker/'
    label: cna@vuldb.com
  - url: 'https://github.com/vas3k/TaxHacker/issues/187'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-94040'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/947879'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/407969'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/407969/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00532
epssPercentile: 0.42536
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-24T12:04:30.461084Z'
ingestedAt: '2026-09-20T17:24:21.900Z'
---

## Overview

A flaw has been found in vas3k TaxHacker up to 0.8.5. Affected by this vulnerability is the function testLLMProviderAction of the file app/(app)/apps/settings/actions.ts. Executing a manipulation of the argument provider/apiKey/model/baseUrl can lead to server-side request forgery. The attack may be performed from remote. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.