Vulnerability Description
LMDeploy through 0.14.0, fixed in commit 03c3130, contains a server-side request forgery (SSRF) vulnerability in the _load_http_url function within the connection.py media handler, where the private-IP guard validates only the original URL without re-validating hosts after HTTP redirects. An unauthenticated attacker can submit a crafted image_url to the chat completions endpoint pointing to an attacker-controlled host that returns a redirect to a private IP or cloud-metadata endpoint, causing the server to follow the redirect and expose internal service content through the model pipeline.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Internlm | Lmdeploy | <= 0.14.0 |
Related Weaknesses (CWE)
References
- https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997cPatch
- https://github.com/InternLM/lmdeploy/issues/4761ExploitIssue TrackingMitigation
- https://github.com/InternLM/lmdeploy/pull/4734Issue TrackingPatch
- https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-htExploitPatchThird Party Advisory
- https://github.com/InternLM/lmdeploy/issues/4761ExploitIssue TrackingMitigation
FAQ
What is CVE-2026-63764?
CVE-2026-63764 is a vulnerability with a CVSS score of 8.6 (HIGH). LMDeploy through 0.14.0, fixed in commit 03c3130, contains a server-side request forgery (SSRF) vulnerability in the _load_http_url function within the connection.py media handler, where the private-I...
How severe is CVE-2026-63764?
CVE-2026-63764 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63764?
Check the references section above for vendor advisories and patch information. Affected products include: Internlm Lmdeploy.