CVE-2026-85609 Openpanel before 2.3.0 SSRF via Site Checker Endpoint
Unauthenticated attackers can exploit an SSRF vulnerability in the site checker endpoint to access internal services and cloud metadata.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85609?
CVE-2026-85609 is a medium-severity server-side request forgery vulnerability in Openpanel-dev openpanel, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Openpanel before 2.3.0 contains an unauthenticated full-read server-side request forgery (SSRF) vulnerability in the GET /tools/site-checker endpoint (apps/api/src/controllers/tools.controller.ts). The endpoint passes a user-supplied url query parameter to fetchWithRedirects() and performs server-side HTTP requests to arbitrary URLs without any SSRF/IP validation. An unauthenticated remote attacker can access cloud instance metadata endpoints, probe internal services, scan internal network ports, and read returned content (status code, page size, timing, and parsed HTML metadata), and leak internal IP addresses (via getIPInfo() to a third party).
Weakness: CWE-918
Which versions are affected by CVE-2026-85609?
How do I fix CVE-2026-85609?
No fix has been published for CVE-2026-85609 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-85609 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85609 exists.
Sources
Also known as GHSA-m7f4-qmh8-fvrx, GHSA-r3jv-rmrg-j395.