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CVE-2026-55646

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

CVSS 6.5 MEDIUMCWE-400CWE-770
Vexday Risk Score
10Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 6.5EPSS KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
06 jul 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Productos afectados
vllm-project · vllm