Vulnerability Description
vLLM before 0.27.0 fails to properly classify DeepStream as a GPU backend and omits pixel-limit enforcement in its decode path. Unauthenticated attackers can activate DeepStream at request time to initialize the process-wide GPU decode pool and submit video that bypasses resource controls, causing partial denial of service for concurrent requests.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/vllm-project/vllm/commit/e23b19309b8705b21c3b3ff4129c9974ba15
- https://github.com/vllm-project/vllm/security/advisories/GHSA-cqm8-jxg6-fqfq
- https://www.vulncheck.com/advisories/vllm-before-denial-of-service-via-deepstrea
FAQ
What is CVE-2026-78684?
CVE-2026-78684 is a vulnerability with a CVSS score of 5.3 (MEDIUM). vLLM before 0.27.0 fails to properly classify DeepStream as a GPU backend and omits pixel-limit enforcement in its decode path. Unauthenticated attackers can activate DeepStream at request time to ini...
How severe is CVE-2026-78684?
CVE-2026-78684 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-78684?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.