CVE-2026-25960

Summary

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 Software

Weaknesses

• CWE-918: CWE-918: Server-Side Request Forgery (SSRF)

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

vLLM: vLLM: Server-Side Request Forgery bypass via inconsistent URL parsing

Additional References

• 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
• https://access.redhat.com/errata/RHSA-2026:24977

References

• https://github.com/vllm-project/vllm/security/advisories/GHSA-v359-jj2v-j536
• https://github.com/vllm-project/vllm/security/advisories/GHSA-qh4c-xf7m-gxfc
• https://github.com/vllm-project/vllm/pull/34743
• https://github.com/vllm-project/vllm/commit/6f3b2047abd4a748e3db4a68543f8221358002c0

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