CVE-2026-85673 LLaMA-Factory SSRF Guard Bypass via Redirect and DNS Rebinding
Unauthenticated attackers can bypass SSRF guards via redirects or DNS rebinding to access internal resources 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-2026-85673?
CVE-2026-85673 is a high-severity server-side request forgery vulnerability in hiyouga LlamaFactory, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
LLaMA-Factory contains a server-side request forgery vulnerability in the OpenAI-compatible API multimodal media URL handler that allows unauthenticated attackers to bypass SSRF validation. The check_ssrf_url guard validates URLs once but requests.get follows redirects and re-resolves DNS without re-validation, enabling attackers to use HTTP redirects or DNS rebinding to access internal addresses and cloud metadata endpoints.
Weakness: CWE-918
Which versions are affected by CVE-2026-85673?
How do I fix CVE-2026-85673?
No fix has been published for CVE-2026-85673 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-2026-85673 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85673 exists.
Sources
Also known as GHSA-8g7q-h2wm-q974.