CVE-2026-63086 – text-generation-inference 3.3.7 SSRF via fetch_image in multimodal chat completions

CVE ID :CVE-2026-63086

Published : July 16, 2026, 5:16 p.m. | 18 minutes ago

Description :text-generation-inference through 3.3.7 contains a server-side request forgery (SSRF) vulnerability in the OpenAI-compatible multimodal chat completions endpoint that allows unauthenticated network attackers to coerce the server into issuing arbitrary HTTP GET requests by supplying a crafted image_url value in chat message content. The fetch_image function in router/src/validation.rs performs no validation of private, loopback, link-local, or cloud metadata target addresses, and the reqwest HTTP client follows redirects by default, enabling attackers to bypass scheme checks via redirect chains to reach internal services and cloud instance-metadata endpoints for internal port scanning and credential theft.

Severity: 8.6 | HIGH

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