Incorrect Privilege Assignment Affecting vllm-cu129 package, versions <0.25.1-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-VLLMCU129-19957928
  • published20 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

NewCVE-2026-63349  (opens in a new tab)
CWE-266  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade Minimos:latest vllm-cu129 to version 0.25.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vllm-cu129 package and not the vllm-cu129 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. In 4.14.0, AnyIO accepts the POSIX extra_groups argument in anyio.run_process() and anyio.open_process(), but open_process() forwards the group argument to the backend instead of extra_groups. A caller that supplies extra_groups=[] to clear inherited supplementary groups can therefore launch a child that retains the parent process groups, undermining a privilege-dropping boundary. If group is also supplied, the integer group value is passed where an iterable of supplementary groups is expected and the launch can fail with TypeError. This issue affects POSIX applications that rely on AnyIO subprocess helpers to launch less-privileged child processes. This issue is fixed in version 4.14.2.

CVSS Base Scores

version 3.1