CVE-2026-63764Public exploitNetwork attack vector

Internal-service data disclosure via unchecked HTTP redirects

Published Jul 21, 2026 · Updated Jul 21, 2026

SSRF in InternLM LMDeploy through 0.14.0 allows remote attackers to read internal service content through a redirected image_url. The _load_http_url function in lmdeploy/vl/media/connection.py validates only the initial host, then follows HTTP redirects without applying the private-IP guard to each destination. The OpenAI-compatible vision server binds to all interfaces without authentication by default, so a crafted chat-completions request can disclose internal-service or cloud-metadata content through the model pipeline.

CVSS severity7.7
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in InternLM LMDeploy through 0.14.0 allows remote attackers to read internal service content through a redirected image_url. The _load_http_url function in lmdeploy/vl/media/connection.py validates only the initial host, then follows HTTP redirects without applying the private-IP guard to each destination. The OpenAI-compatible vision server binds to all interfaces without authentication by default, so a crafted chat-completions request can disclose internal-service or cloud-metadata content through the model pipeline.

The record

CVE
CVE-2026-63764
Published
Jul 21, 2026
Updated
Jul 21, 2026
Vendor
InternLM
Product
LMDeploy
Classifications
CWE-918, T1552.005, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

InternLM · LMDeployAffected versions are unavailable in this record.

Published CVSS scores

8.6VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
7.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials: Cloud Instance Metadata API
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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