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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-109311

vLLM before 0.29.0 Heap Overflow DoS via IAMF Audio Transcription Upload

Description

vLLM before 0.29.0 passes uploaded audio to the PyAV/FFmpeg av.open() fallback with only a file-size check, exposing FFmpeg's IAMF parser heap overflow. Authenticated remote attackers can repeatedly upload malformed IAMF containers to /v1/audio/transcriptions, corrupting the heap and crashing the API process.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

vllm-project vllm

Default version status: unaffected

  • 0 to < 0.29.0affected
  • 0.29.0unaffected
pkg:pypi/vllm

References