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.
History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
References
Metrics threat_severity

None

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

threat_severity

Moderate


Tue, 25 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title vLLM before 0.27.0 Denial of Service via DeepStream Backend
First Time appeared Vllm
Vllm vllm
Weaknesses CWE-400
CPEs cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Vendors & Products Vllm
Vllm vllm
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-08-25T11:33:22.005Z

Updated: 2026-08-27T15:08:40.922Z

Reserved: 2026-08-25T01:17:12.263Z

Link: CVE-2026-78684

cve-icon Vulnrichment

Updated: 2026-08-27T15:08:35.716Z

cve-icon NVD

Status : Received

Published: 2026-08-25T12:16:27.387

Modified: 2026-08-27T17:20:43.657

Link: CVE-2026-78684

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-25T11:33:22Z

Links: CVE-2026-78684 - Bugzilla