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OpenAdvisories
High · 7.5 CVE-2026-123818 EUVD-2026-120455

LMDeploy URL parser disagreement permits SSRF filter bypass

Published Nov 9, 2026 · Updated Nov 12, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
InternLM lmdeploy >= 0.12.3, < 0.15.0 —

References