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CVE-2026-33626— LMDeploy Vulnerable to Server-Side Request Forgery (SSRF) via Vision-Language Image Loading

Quick assessment

Affected
InternLM lmdeploy
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

lmdeploy是InternLM开源的一个用于压缩、部署和服务 LLM 的工具包。 LMDeploy 0.12.3之前版本存在安全漏洞，该漏洞源于vision-language模块中load_image函数未验证URL，可能导致服务端请求伪造攻击。

CVSS 7.5 · High EPSS 1.51% · P74

Public Exploits 1

Nuclei · 1 CVE-2026-33626.yaml [template]

Possible ATT&CK Techniques 1 AI

T1113 · Screen Capture
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I. Basic Information for CVE-2026-33626

Vulnerability Information
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Vulnerability Title
LMDeploy Vulnerable to Server-Side Request Forgery (SSRF) via Vision-Language Image Loading
Source: CVE Program / CVE List V5
Vulnerability Description
LMDeploy is a toolkit for compressing, deploying, and serving large language models. Versions prior to 0.12.3 have a Server-Side Request Forgery (SSRF) vulnerability in LMDeploy's vision-language module. The `load_image()` function in `lmdeploy/vl/utils.py` fetches arbitrary URLs without validating internal/private IP addresses, allowing attackers to access cloud metadata services, internal networks, and sensitive resources. Version 0.12.3 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
lmdeploy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
lmdeploy是InternLM开源的一个用于压缩、部署和服务 LLM 的工具包。 LMDeploy 0.12.3之前版本存在安全漏洞，该漏洞源于vision-language模块中load_image函数未验证URL，可能导致服务端请求伪造攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
InternLM lmdeploy < 0.12.3 -

II. Public POCs for CVE-2026-33626

# POC Description Source Link Shenlong Link
1 LMDeploy is a toolkit for compressing, deploying, and serving large language models. Versions prior to 0.12.3 have a Server-Side Request Forgery (SSRF) vulnerability in the vision-language module. The load_image() function in lmdeploy/vl/utils.py fetches arbitrary URLs without validating internal or private IP addresses, allowing unauthenticated attackers to access cloud metadata services, internal networks, and sensitive resources via the image_url parameter in /v1/chat/completions requests. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-33626.yaml POC Details
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III. Intelligence Information for CVE-2026-33626

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Patches & Fixes for CVE-2026-33626 (2)

Vendor Advisories for CVE-2026-33626 (1)

IV. Related Vulnerabilities

Same product: lmdeploy
Same vendor: InternLM
Same weakness: CWE-918

V. Comments for CVE-2026-33626

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