---
cve: "CVE-2026-61640"
severity: "HIGH"
cvss: 8.5
epss: "0.3%"
vendor: "ellite"
kev: false
exploited: false
published: "2026-08-31 21:17:17"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T23:16:11+02:00"
---

# CVE-2026-61640

> 8.5 HIGH · 🧪 PoC

## Beschreibung

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, Admin-configured OIDC token_url and user_info_url in includes/oidc/handle_oidc_callback.php:18-49 are used directly in curl_init() with zero SSRF filtering. Unlike logo/webhook URLs which have validate_webhook_url_for_ssrf(), OIDC URLs bypass all protections. Admin sets URL to http://169.254.169.254/latest/meta-data/ for cloud metadata access or internal network pivoting. This issue has been patched in version 4.9.6.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Hoch | good |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3 (Commit)
- 02826761b0e7b94d40f23f1511dcfcd563aa6ee6 (Commit)

## Referenzen

- <https://github.com/ellite/Wallos/security/advisories/GHSA-x9x5-gh69-q7cm>
- <https://github.com/ellite/Wallos/pull/1092>
- <https://github.com/ellite/Wallos/commit/b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3>
- <https://github.com/ellite/Wallos/releases/tag/v4.9.6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-61640) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_