CVE-2026-63764

CRITICALPre-NVD 8.69.3▲
EchelonGraph scoreHIGH confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-21. a secondary CVSS source baseline 8.6; sources differ by 0.7.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
8.6
EG Score
9.3(high)
EG Risk
73(Attend)
EG Risk 73/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated Jul 21, 2026
No patch confirmed yet.
generic

lmdeploy Server-Side Request Forgery via HTTP Redirect Bypass of Private-IP Guard in Vision Image Fetch | Advisories | VulnCheck

https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass-of-private-ip-guard-in-vision-image-fetch
generic

Unauthenticated SSRF via image_url in the OpenAI-compatible chat endpoint (redirect bypass of the private-IP guard) · Issue #4761 · InternLM/lmdeploy · GitHub

https://github.com/InternLM/lmdeploy/issues/4761
generic

GitHub - InternLM/lmdeploy: LMDeploy is a toolkit for compressing, deploying, and serving LLMs. · GitHub

https://github.com/InternLM/lmdeploy

Vendor Advisories for CVE-2026-63764(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 27× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-27 05:07 UTCGHSA enrichment
  2. 2026-07-27 01:18 UTCGHSA enrichment
  3. 2026-07-26 21:28 UTCGHSA enrichment
  4. 2026-07-26 17:39 UTCEG score recompute
  5. 2026-07-26 17:39 UTCGHSA enrichment
  6. 2026-07-26 14:54 UTCEPSS rescore
  7. 2026-07-26 14:54 UTCEPSS rescore
  8. 2026-07-26 13:50 UTCEG score recompute
  9. 2026-07-26 13:50 UTCGHSA enrichment
  10. 2026-07-26 10:00 UTCGHSA enrichment
  11. 2026-07-26 04:18 UTCEG score recompute
  12. 2026-07-26 04:18 UTCGHSA enrichment
  13. 2026-07-25 14:18 UTCEPSS rescore
  14. 2026-07-25 14:18 UTCEPSS rescore
  15. 2026-07-24 14:18 UTCEPSS rescore
  16. 2026-07-24 14:18 UTCEPSS rescore
  17. 2026-07-23 17:51 UTCMITRE cvelistV5CVSS v3 → 8.6 · CVSS v4 → 7.7 · severity → HIGH
  18. 2026-07-23 14:18 UTCEPSS rescore
  19. 2026-07-23 14:18 UTCEPSS rescore
  20. 2026-07-23 03:22 UTCEG score recompute
  21. 2026-07-22 22:58 UTCEG score recompute
  22. 2026-07-22 22:58 UTCGHSA enrichment
  23. 2026-07-22 14:08 UTCEPSS rescore
  24. 2026-07-22 14:08 UTCEPSS rescore
  25. 2026-07-21 21:24 UTCEG score recompute
Show 2 more
  1. 2026-07-21 20:44 UTCEG score recompute
  2. 2026-07-21 20:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-63764?
CVE-2026-63764 is a critical vulnerability published on July 21, 2026. LMDeploy through 0.14.0, fixed in commit 03c3130, contains a server-side request forgery (SSRF) vulnerability in the loadhttpurl 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…
When was CVE-2026-63764 disclosed?
CVE-2026-63764 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63764 actively exploited?
CVE-2026-63764 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 77.6% of all scored CVEs.
What is the CVSS score of CVE-2026-63764?
CVE-2026-63764 has a CVSS v3 base score of 8.6 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.3.
How do I remediate CVE-2026-63764?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63764, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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