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Vllm CVE-2026-25960

CRITICAL
Server-Side Request Forgery (SSRF) (CWE-918)
2026-03-09 security-advisories@github.com GHSA-v359-jj2v-j536
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.2 HIGH

Remote unauthenticated SSRF reaching backend systems justifies AV:N/AC:L/PR:N and S:C with C:H for internal data exposure; integrity is only low and availability impact is not demonstrated.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N
Red Hat
7.1 HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

13
Analysis Updated
Jun 30, 2026 - 04:03 vuln.today
v7 (cvss_changed)
Analysis Updated
Jun 30, 2026 - 03:59 vuln.today
v6 (cvss_changed)
Analysis Updated
Jun 30, 2026 - 03:58 vuln.today
v5 (cvss_changed)
Analysis Updated
Jun 30, 2026 - 03:58 vuln.today
v4 (cvss_changed)
Analysis Updated
Jun 30, 2026 - 03:58 vuln.today
v3 (cvss_changed)
Source Code Evidence Fetched
Jun 30, 2026 - 03:57 vuln.today
Analysis Updated
Jun 30, 2026 - 03:57 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jun 30, 2026 - 03:24 vuln.today
cvss_changed
Severity Changed
Jun 30, 2026 - 03:24 NVD
HIGH CRITICAL
CVSS changed
Jun 30, 2026 - 03:24 NVD
7.1 (HIGH) 9.8 (CRITICAL)
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:56 vuln.today
CVE Published
Mar 09, 2026 - 21:16 nvd
HIGH 7.1

DescriptionNVD

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.

AnalysisAI

Server-Side Request Forgery in vLLM's multimodal MediaConnector allows remote attackers to coerce the inference server into fetching attacker-chosen internal URLs, bypassing the allowed_media_domains allowlist that was added to fix CVE-2026-24779. The bypass exploits a backslash-before-@ parsing disagreement between urllib3.util.parse_url (validation layer) and aiohttp/yarl (HTTP client), so a URL the allowlist reads as a permitted host is actually fetched from an internal target. It carries a CVSS 9.8 rating, a vendor patch and Red Hat advisory are available, and a working bypass payload is published in the GHSA advisory and fix test suite, though EPSS is very low (0.02%, 3rd percentile) and it is not on CISA KEV.

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Vendor StatusVendor

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CVE-2026-25960 vulnerability details – vuln.today

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