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CVE-2026-69147: vLLM is an inference and serving engine for large language models

40
This month
MEDIUM 6.5UPGRADE

CVE-2026-69147 is a medium-severity flaw (CVSS 6.5) affecting vllm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.6% (top 52%)
CISA exploited listNo
WeaknessCWE-400, CWE-770
Published2026-09-16
Last modified2026-10-07
Publisher (CNA): GitHub, Inc. · Vendor: vllm

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Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

vllm vllm UPGRADE
Affected: < 0.28.0
Fixed in: 0.28.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy vllm || rpm -q vllm || vllm --version
2. UPGRADE to 0.28.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade vllm
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade vllm
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-69147?

vllm: upgrade to 0.28.0. Exact commands for each OS are on this page.

Is CVE-2026-69147 being exploited?

CVE-2026-69147 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-69147 affect?

CVE-2026-69147 affects vllm. Severity is medium (CVSS 6.5). 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 tha

How urgent is CVE-2026-69147?

Priority 40/100. Public exploit reference

Related CVEs

References

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