CVE-2026-55646

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.

References

https://github.com/vllm-project/vllm/security/advisories/GHSA-v82g-2437-67m2

https://github.com/vllm-project/vllm/pull/45510

https://github.com/vllm-project/vllm/commit/b997071ec493765abbed990c65843ed05e4708a8

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3