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CVE-2026-114052 vLLM after 0.24.0 and before 0.31.0 contains a memory exhaustion vulnerability in MOSS-Audio model serving that caches a…

Description

vLLM after 0.24.0 and before 0.31.0 contains a memory exhaustion vulnerability in MOSS-Audio model serving that caches a processor for every distinct request-controlled mm_processor_kwargs value in an unbounded dictionary. Unauthenticated attackers can send distinct or oversized mel_config values to the /tokenize endpoint, which bypasses --api-key, to exhaust host memory and crash the API process.

Affected products and versions

Product Affected versions Fixed in
vllm 0.31 earliest → < 0.31.0 0.31.0
vllm 0.25 0.25.0 → < 0.31.0 0.31.0

References

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