LMDeploy Server-Side Request Forgery via HTTP Redirect Bypass (CVE-2026-63764) | HOL Guard CVE

High · CVSS 8.6CVE-2026-63764

LMDeploy Server-Side Request Forgery via HTTP Redirect Bypass

Answer in brief

CVE-2026-63764 records a High severity (CVSS 8.6) vulnerability in LMDeploy Server-Side Request Forgery via HTTP Redirect Bypass. The current sources do not mark it as known exploited. The current feed maps InternLM/lmdeploy (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 21, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Aug 5, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.6
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps InternLM/lmdeploy (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:a:internlm:lmdeploy::::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
InternLM/lmdeploygeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for InternLM/lmdeploy.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.