Description
vLLM before 0.29.0 contains a resource-limit bypass vulnerability in PyNvVideoCodec decoder allocation where sampler subclass shadowing allows independent counter increments. Unauthenticated attackers can select different sampler subclasses in video requests to exceed configured decoder limits and exhaust unaccounted GPU memory.
Published: 2026-09-26
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Sun, 04 Oct 2026 06:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 27 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Sat, 26 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Description vLLM before 0.29.0 contains a resource-limit bypass vulnerability in PyNvVideoCodec decoder allocation where sampler subclass shadowing allows independent counter increments. Unauthenticated attackers can select different sampler subclasses in video requests to exceed configured decoder limits and exhaust unaccounted GPU memory.
Title vLLM before 0.29.0 Resource Limit Bypass via Sampler Subclass
First Time appeared Vllm
Vllm vllm
Weaknesses CWE-770
CPEs cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Vendors & Products Vllm
Vllm vllm
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-02T18:00:11.135Z

Reserved: 2026-09-26T02:33:07.898Z

Link: CVE-2026-100649

cve-icon Vulnrichment

Updated: 2026-10-02T18:00:06.603Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-26T14:16:47.380

Modified: 2026-10-06T19:37:35.050

Link: CVE-2026-100649

cve-icon Redhat

Severity : Low

Publid Date: 2026-09-26T13:23:19Z

Links: CVE-2026-100649 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T16:00:09Z

Weaknesses