Bug 2445892 (CVE-2026-25960)

Summary:	CVE-2026-25960 vLLM: vLLM: Server-Side Request Forgery bypass via inconsistent URL parsing
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	alinfoot, bbrownin, dtrifiro, jkoehler, lphiri, rbryant, weaton
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in vLLM, an inference and serving engine for large language models (LLMs). A remote attacker can exploit this Server-Side Request Forgery (SSRF) bypass vulnerability in the `load_from_url_async` method. The flaw occurs because the URL validation and the actual HTTP request handling use different parsing libraries, leading to inconsistencies. This allows an attacker to bypass existing SSRF protections, potentially leading to the disclosure of sensitive information from internal network resources.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2026-03-09 22:02:28 UTC

vLLM is an inference and serving engine for large language models (LLMs). The SSRF protection fix for CVE-2026-24779 add in 0.15.1 can be bypassed in the load_from_url_async method due to inconsistent URL parsing behavior between the validation layer and the actual HTTP client. The SSRF fix uses urllib3.util.parse_url() to validate and extract the hostname from user-provided URLs. However, load_from_url_async uses aiohttp for making the actual HTTP requests, and aiohttp internally uses the yarl library for URL parsing. This vulnerability in 0.17.0.