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CVE-2026-63764 is a server-side request forgery vulnerability in InternLM LMDeploy's OpenAI-compatible API server affecting versions through 0.14.0. The flaw is in the server-side media fetching logic used for vision workflows, where a supplied image_url is validated only at the initial destination and then fetched with automatic HTTP redirect following enabled. Because subsequent redirect targets are not re-validated by the URL safety guard, an attacker can provide a public, attacker-controlled URL that passes the initial check and then responds with an HTTP redirect to an internal target such as loopback or a cloud instance metadata service. This turns the inference server into a proxy for reaching otherwise inaccessible internal resources.
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No public exploit code observed for this vulnerability.
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6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical server-side request forgery vulnerability in LMDeploy’s OpenAI-compatible API server that allows unauthenticated attackers to bypass initial URL safety checks via HTTP 302 redirects and access internal services or cloud metadata endpoints.
A server-side request forgery vulnerability in InternLM lmdeploy's OpenAI-compatible API server that lets unauthenticated attackers reach internal services and cloud metadata endpoints via an HTTP redirect bypass in image_url handling.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.