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OpenAdvisories
Medium · 6.5 CVE-2026-55646 EUVD-2026-41914GHSA-v82g-2437-67m2PYSEC-2026-2305

vLLM speech-to-text endpoints allocate full upload before enforcing the audio file-size limit

Published Jul 6, 2026 · Updated Jul 6, 2026 · Assigned by GitHub_M

Description

vLLM is an inference and serving engine for large language models. From 0.22.0 to 0.23.0, the /v1/audio/transcriptions and /v1/audio/translations routes call request.file.read() to fully materialize an uploaded audio file into memory before vLLM checks the documented VLLM_MAX_AUDIO_CLIP_FILESIZE_MB compressed upload size limit (default 25 MB) later in the speech-to-text preprocessing step, so an API caller who can reach those routes can submit an oversized multipart upload and cause vLLM to allocate memory proportional to the uploaded file size before the request is rejected as too large, creating memory pressure or terminating the process depending on deployment resource limits. This issue is fixed in version 0.24.0.

Affected products

VendorProductAffectedFixed
vllm-project vllm >= 0.22.0, < 0.24.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI vllm >= 0.22.0, < 0.24.0 0.24.0 GHSA-v82g-2437-67m2

Advisories 1

References