CVE-2026-123818
LMDeploy URL parser disagreement permits SSRF filter bypass
Description
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.
INFO
Published Date :
Nov. 9, 2026, 9:19 p.m.
Last Modified :
Nov. 9, 2026, 9:19 p.m.
Remotely Exploit :
Yes !
Source :
GitHub_M
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update LMDeploy to version 0.15.0 or later.
- Validate remote media URLs rigorously.
- Avoid processing attacker-controlled URLs.
- Sanitize all network requests.
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CVE-2026-123818 vulnerability anywhere in the article.