Cyber Resilience

CVE-2026-33626

SSRF in Internlm Lmdeploy ≤ 0.12.3

Public PoCSSRF
Published
20 April 2026
Modified
23 April 2026
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.45 99th percentile
Risk Priority 77 floored blend · peak EPSS

Summary

CVE-2026-33626 is a high-severity SSRF (CWE-918) vulnerability in Internlm Lmdeploy. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-4 (Information Flow Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

LMDeploy is a toolkit for compressing, deploying, and serving large language models. Versions prior to 0.12.3 contain a Server-Side Request Forgery vulnerability in the vision-language module, specifically in the load_image function within lmdeploy/vl/utils.py, which retrieves content from arbitrary URLs without validating internal or private IP addresses. This flaw is tracked as CWE-918 and carries a CVSS 3.1 score of 7.5.

An unauthenticated remote attacker can supply a crafted URL to the affected function and force the server to issue requests against internal resources such as cloud metadata services or private network endpoints, potentially disclosing sensitive data. Exploitation requires no user interaction or privileges and can be performed over the network.

The official GitHub advisory GHSA-6w67-hwm5-92mq and the 0.12.3 release notes state that the issue is resolved by updating to version 0.12.3, which incorporates input validation for URLs in the load_image function; the corresponding commit and pull request are referenced in the advisory.

The EPSS score has remained flat at 0.0870 with no material increase after disclosure.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

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,…

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allowing attackers to access cloud metadata services, internal networks, and sensitive resources. Version 0.12.3 patches the issue.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-63764Same product: Internlm Lmdeploy
CVE-2025-3162Same product: Internlm Lmdeploy
CVE-2025-3163Same product: Internlm Lmdeploy
CVE-2025-67729Same product: Internlm Lmdeploy
CVE-2025-46568Shared CWE-918
CVE-2024-51408Shared CWE-918
CVE-2026-15525Shared CWE-918
CVE-2025-28089Shared CWE-918
CVE-2024-37359Shared CWE-918
CVE-2026-15143Shared CWE-918

Affected Assets

internlm
lmdeploy
≤ 0.12.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

Mitigating Controls (NIST 800-53 r5) AI

Information flow enforcement can restrict which destinations the server is allowed to contact on behalf of users.

Input validation directly stops untrusted URLs from being accepted and fetched without destination checks.

Boundary protection limits the network reach of server-initiated requests even if SSRF occurs.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References