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Vulnerability record · CVE-2026-63764 · published 21 July 2026

CVE-2026-63764: Internlm lmdeploy server-side request forgery (ssrf) vulnerability

IInternlm · Lmdeploy

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.

7.7 CVSS 4.0 High EPSS 0.51% · top 58.7% CWE-918 · Server-side request forgery (SSRF)
7.7CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 3 tagged exploit
17 Sep 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997c44db Patch
https://github.com/InternLM/lmdeploy/issues/4761 ExploitIssue TrackingMitigation
https://github.com/InternLM/lmdeploy/pull/4734 Issue TrackingPatch
https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass ExploitPatchThird Party Advisory
https://github.com/InternLM/lmdeploy/issues/4761 ExploitIssue TrackingMitigation

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-63764), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.