CVE-2026-85686 ms-swift 4.5.2 Unauthenticated SSRF via Multimodal Media URLs

High 8.7 Published Updated

Unauthenticated attackers can exploit ms-swift's API to fetch arbitrary URLs, enabling access to 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-2026-85686?

CVE-2026-85686 is a high-severity server-side request forgery vulnerability in modelscope ms-swift, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ms-swift 4.5.2 contains a server-side request forgery vulnerability in the swift deploy OpenAI-compatible API that fetches multimodal media URLs without validation or redirect filtering. Unauthenticated attackers can supply arbitrary image_url, audio_url, or video_url parameters to make the server issue requests to internal services and cloud metadata endpoints.

Weakness: CWE-918

Which versions are affected by CVE-2026-85686?

How do I fix CVE-2026-85686?

No fix has been published for CVE-2026-85686 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-2026-85686 being exploited?

There is no known exploitation of CVE-2026-85686 in the wild and no public exploit code.

Sources

Also known as GHSA-hrmr-fv6h-885h.

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