---
id: CVE-2026-111922
title: Vikunja 2.2.0 before 2.7.0 Permissive CORS Policy Trusting Localhost Origins
summary: >-
  Vikunja from 2.2.0 before 2.7.0 contains a permissive CORS configuration that
  trusts every localhost and 127.0.0.1 port with credentials, even when
  service.publicurl is set. Attackers controlling a page on any localhost port
  can send a c…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-942
vendor: go-vikunja
product: vikunja
affected:
  - vikunja >= 2.2.0 < 2.7.0
published: '2026-10-17'
updated: '2026-10-17'
sourceUpdated: '2026-10-17T18:46:35.991Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111922'
references:
  - url: >-
      https://github.com/go-vikunja/vikunja/security/advisories/GHSA-m687-p538-r5hp
    label: GitHub Security Advisory (GHSA-m687-p538-r5hp)
  - url: >-
      https://www.vulncheck.com/advisories/vikunja-2.2.0-before-2.7.0-permissive-cors-policy-trusting-localhost-origins
    label: >-
      VulnCheck Advisory: Vikunja 2.2.0 before 2.7.0 Permissive CORS Policy
      Trusting Localhost Origins
tags:
  - cve.org
ingestedAt: '2026-10-17T19:08:56.619Z'
---

## Overview

Vikunja from 2.2.0 before 2.7.0 contains a permissive CORS configuration that trusts every localhost and 127.0.0.1 port with credentials, even when service.publicurl is set. Attackers controlling a page on any localhost port can send a credentialed request to the token refresh endpoint and read the returned bearer JWT to take over the logged-in user's account.

## Affected

- `vikunja >= 2.2.0 < 2.7.0`

## Remediation

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