CVE-2026-69147 - vLLM: Request-selected PyNvVideoCodec GPU decode bypasses static VRAM reservation

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MEDIUM

vLLM: Request-selected PyNvVideoCodec GPU decode bypasses static VRAM reservation

Published Sep 16, 2026

6.5

MEDIUM

CVSS 3.1

EPSS 0.55%

Description

vLLM is an inference and serving engine for large language models. Prior to 0.28.0, request bodies for Chat Completions and Responses can set media_io_kwargs.video.video_backend to pynvvideocodec, and MediaConnector.fetch_video forwards that choice to VideoMediaIO even when startup configuration selected a software decoder. The engine's _reserve_mm_ipc_gpu_memory logic budgets decoder memory only from static configuration, so the request-selected VIDEO_LOADER_REGISTRY backend can create a CUDA context, decoder surfaces, and decoded-frame allocations that were not removed from the engine's KV-cache budget. An attacker able to submit video requests to a video-capable GPU deployment with PyNvVideoCodec installed can exhaust shared GPU memory, causing request failures, worker crashes, or denial of service. The first release containing the fix is version 0.28.0.

Affected products

Vendor Vllm-Project Product Vllm Default
n/a
- Version
  < 0.28.0
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Vllm-Project

Vllm

n/a

Version	Status	Constraints
< 0.28.0	affected	-

Red Hat AI Inference Server

rhaii/vllm-cpu-rhel9

Fix deferred
Red Hat AI Inference Server

rhaii/vllm-cuda-rhel9

Fix deferred
Red Hat AI Inference Server

rhaii/vllm-gaudi-rhel9

Fix deferred
Red Hat AI Inference Server

rhaii/vllm-neuron-rhel9

Fix deferred
Red Hat AI Inference Server

rhaii/vllm-rocm-rhel9

Fix deferred
Red Hat AI Inference Server

rhaii/vllm-spyre-rhel9

Fix deferred
Red Hat AI Inference Server

rhaii/vllm-tpu-rhel9

Fix deferred
Red Hat AI Inference Server

rhaiis/vllm-cpu-rhel9

Fix deferred
Red Hat AI Inference Server

rhaiis/vllm-cuda-rhel9

Fix deferred
Red Hat AI Inference Server

rhaiis/vllm-neuron-rhel9

Fix deferred
Red Hat AI Inference Server

rhaiis/vllm-rocm-rhel9

Fix deferred
Red Hat AI Inference Server

rhaiis/vllm-spyre-rhel9

Fix deferred
Red Hat AI Inference Server

rhaiis/vllm-tpu-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-aws-cuda-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-azure-cuda-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-azure-rocm-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-cuda-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-gaudi-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-gcp-cuda-rhel9

Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3

rhelai3/bootc-rocm-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-kserve-agent-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-kserve-controller-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-kserve-router-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-kserve-storage-initializer-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-llm-d-kv-cache-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-th-torch-cuda-py312-rhel9

Fix deferred
Red Hat OpenShift AI (RHOAI)

rhoai/odh-vllm-gaudi-rhel9

Fix deferred

Product	Package	State	Advisory
Red Hat AI Inference Server	rhaii/vllm-cpu-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaii/vllm-cuda-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaii/vllm-gaudi-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaii/vllm-neuron-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaii/vllm-rocm-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaii/vllm-spyre-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaii/vllm-tpu-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaiis/vllm-cpu-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaiis/vllm-cuda-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaiis/vllm-neuron-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaiis/vllm-rocm-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaiis/vllm-spyre-rhel9	Fix deferred	n/a
Red Hat AI Inference Server	rhaiis/vllm-tpu-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-aws-cuda-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-azure-cuda-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-azure-rocm-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-cuda-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-gaudi-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-gcp-cuda-rhel9	Fix deferred	n/a
Red Hat Enterprise Linux AI (RHEL AI) 3	rhelai3/bootc-rocm-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-kserve-agent-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-kserve-controller-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-kserve-router-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-kserve-storage-initializer-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-llm-d-kv-cache-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-th-torch-cuda-py312-rhel9	Fix deferred	n/a
Red Hat OpenShift AI (RHOAI)	rhoai/odh-vllm-gaudi-rhel9	Fix deferred	n/a

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-400

Uncontrolled Resource Consumption

CWE-770

Allocation of Resources Without Limits

References (10)

https://access.redhat.com/security/cve/CVE-2026-69147
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2535581
Issue Tracking
https://github.com/advisories/GHSA-8pw2-6jv3-mj5j
Advisory
https://github.com/vllm-project/vllm/commit/283893c72292ede38d277e3cd2b9b64c3e4f1dda
x_refsource_MISC
https://github.com/vllm-project/vllm/commit/ba22152096b2484faa3579624a253d54804d876d
x_refsource_MISC
https://github.com/vllm-project/vllm/pull/47259
x_refsource_MISC
https://github.com/vllm-project/vllm/releases/tag/v0.25.0
https://github.com/vllm-project/vllm/security/advisories/GHSA-8pw2-6jv3-mj5j
exploitx_refsource_CONFIRM
https://nvd.nist.gov/vuln/detail/CVE-2026-69147
https://www.cve.org/CVERecord?id=CVE-2026-69147

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2026-69147		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2535581		Issue Tracking
https://github.com/advisories/GHSA-8pw2-6jv3-mj5j		Advisory
https://github.com/vllm-project/vllm/commit/283893c72292ede38d277e3cd2b9b64c3e4f1dda		x_refsource_MISC
https://github.com/vllm-project/vllm/commit/ba22152096b2484faa3579624a253d54804d876d		x_refsource_MISC
https://github.com/vllm-project/vllm/pull/47259		x_refsource_MISC
https://github.com/vllm-project/vllm/releases/tag/v0.25.0
https://github.com/vllm-project/vllm/security/advisories/GHSA-8pw2-6jv3-mj5j		exploitx_refsource_CONFIRM
https://nvd.nist.gov/vuln/detail/CVE-2026-69147
https://www.cve.org/CVERecord?id=CVE-2026-69147