Internlm Lmdeploy
CVE-2026-63764
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.
What this means for your business
- It affects Internlm Lmdeploy. It matters if your company, or a supplier that handles your data, runs it.
- Code showing how to exploit it has been published, but real attacks have not been confirmed.
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.4% chance of attack attempts being seen in the next 30 days, ranking above 32% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Internlm Lmdeploy, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Fastnexa security experts
Not sure if your company is exposed to CVE-2026-63764?
Tell us where you run Internlm Lmdeploy and a Fastnexa penetration tester will check whether this flaw, or others like it, can be used against your websites, apps and network.
The full test is free for our first 10 founding clients until 31 December 2026. See the offer
Think you’ve already been hit? Don’t wait on a form: call or WhatsApp +1 (732) 454 2616. We reply within 1 hour, 24/7. Emergency help →
Scoring
- CVSS
- 8.6 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N- CVSS v4
- 7.7
- Weakness
- CWE-918
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-07-21
- Last modified
- 2026-09-17
- Sources
- NVD
Affected products
- Internlm Lmdeploy- 0.14.0
As listed in the NVD configuration data. Not a statement about your estate.
References
- https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997c44db
- https://github.com/InternLM/lmdeploy/issues/4761
- https://github.com/InternLM/lmdeploy/pull/4734
- https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass
- https://github.com/InternLM/lmdeploy/issues/4761