---
cve: "CVE-2026-111922"
severity: "HIGH"
cvss: 7.2
epss: "0.2%"
vendor: "go-vikunja"
kev: false
exploited: false
published: "2026-10-17 19:16:34"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-28T10:39:03+01:00"
---

# CVE-2026-111922

> 7.2 HIGH · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-19 15:00:44
- CNA-CVSS: **7.2** (`CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Schwachstellen-Klasse

- **CWE-942** — Permissive Cross-domain Security Policy with Untrusted Domains
  The product uses a web-client protection mechanism such as a Content Security Policy (CSP) or cross-domain policy file, but the policy includes untrusted domains with which the web client is allowed to communicate.

## Patch verfügbar (OSV)

- a16be96aa454671fdf213b0fbe411dd38a098418 (Commit)

## Referenzen

- <https://github.com/go-vikunja/vikunja/security/advisories/GHSA-m687-p538-r5hp>
- <https://www.vulncheck.com/advisories/vikunja-2.2.0-before-2.7.0-permissive-cors-policy-trusting-localhost-origins>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-111922/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_