CVE-2026-123818
LMDeploy URL parser disagreement permits SSRF filter bypass
LMDeploy is a toolkit for compressing, deploying, and serving large language models. From 0.12.3 until 0.15.0, _is_safe_url validates remote media URLs with urlparse while requests.Session().get interprets backslashes differently when sending the request. An attacker can provide a URL whose validation hostname appears globally routable but whose request destination resolves to an internal host, bypassing non-global address checks. Applications that accept attacker-controlled remote media URLs can therefore be induced to access internal HTTP services and expose data available from those services. This issue is fixed in version 0.15.0.
Fixes and workarounds
Fix
lmdeploy (PyPI): OSV reports a fixed version 0.15.0. Check the advisory for supported release branches.
Source: OSV GHSA-39wr-7q6h-cf68Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| lmdeploy InternLM |
>= 0.12.3, < 0.15.0 (affected) | CNA: GitHub_M |
lmdeploylmdeploy
PyPI |
0.12.3 (affected, PyPI) 0.13.0 (affected, PyPI) 0.14.0 (affected, PyPI) Ecosystem version events: introduced 0.12.3; fixed 0.15.0 Source events (ECOSYSTEM)Other versions: unaffected |
OSV GHSA-39wr-7q6h-cf68 |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | CNA: GitHub_M |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/InternLM/lmdeploy/security/advisories/GHSA-39wr-7q6h-cf68CNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/InternLM/lmdeploy/pull/4734CNA: GitHub_M · x_refsource_MISC
- https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997c44dbCNA: GitHub_M · x_refsource_MISC
- https://github.com/InternLM/lmdeploy/releases/tag/v0.15.0CNA: GitHub_M · x_refsource_MISC
- https://github.com/advisories/GHSA-39wr-7q6h-cf68OSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-39wr-7q6h-cf68OSV / GitHub Security Advisories · osv
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