What’s Vulnerable › Vulnerabilities

CVE-2026-25960: SSRF Protection Bypass in vLLM

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-09 · updated 2026-07-21
• Weakness: CWE-918

Description

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.

Affected products

• vllm-project vllm: from 0.15.1 before 0.17.0 — fixed in 0.17.0

How to fix

Upgrade to a fixed version: vllm-project vllm 0.17.0. Check the vendor advisory for mitigations.

References

• https://github.com/vllm-project/vllm/commit/6f3b2047abd4a748e3db4a68543f8221358002c0
• https://github.com/vllm-project/vllm/pull/34743
• https://github.com/vllm-project/vllm/security/advisories/GHSA-qh4c-xf7m-gxfc
• https://github.com/vllm-project/vllm/security/advisories/GHSA-v359-jj2v-j536
• https://access.redhat.com/errata/RHSA-2026:24977
• https://access.redhat.com/errata/RHSA-2026:42644
• https://access.redhat.com/security/cve/CVE-2026-25960
• https://bugzilla.redhat.com/show_bug.cgi?id=2445892
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25960.json

Get alerted when CVE-2026-25960 or the next vulnerability affects your stack