CVE-2026-78684

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 v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/vllm-project/vllm/commit/e23b19309b8705b21c3b3ff4129c9974ba15a419
https://github.com/vllm-project/vllm/security/advisories/GHSA-cqm8-jxg6-fqfq
https://www.vulncheck.com/advisories/vllm-before-denial-of-service-via-deepstream-backend

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-25 12:16

Updated : 2026-09-14 21:08

NVD link : CVE-2026-78684

Mitre link : CVE-2026-78684

CVE.ORG link : CVE-2026-78684

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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