Advisory record · GHSA-hcwq-8wjf-3gcr

vLLM: Unauthenticated audio decompression-bomb DoS in /v1/chat/completions

CVSS 6.5 MediumEPSS 0.0073 · 54th percentile

Published by the GitHub Advisory Database at 16 Sept 2026, 22:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
vllmPyPI<0.24.00.24.0
Identifiers
GHSA-hcwq-8wjf-3gcr · CVE-2026-57173 · PYSEC-2026-4179
Weakness (CWE)
CWE-770
Published
16 Sept 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Unauthenticated remote denial of service in vLLM versions before 0.24.0. The audio decode-duration limit applies only to the speech-to-text endpoint, not to audio sent through /v1/chat/completions. An unauthenticated client can send a small compressed audio file that expands to several gigabytes when decoded, exhausting memory and crashing the worker. Upgrade to vLLM 0.24.0 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0073, the 54th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:09 UTC First seen by agentprime
  2. 31 Oct 2026, 14:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.