GHSA-q9hm-g73w-q6wpMediumCVSS 3.7
vLLM through 0.29.0 contains a memory corruption vulnerability in the Triton _bincount_kernel...
🔗 CVE IDs covered (1)
📋 Description
vLLM through 0.29.0 contains a memory corruption vulnerability in the Triton _bincount_kernel where prompt token IDs index the penalty prompt-presence bitset without bounds checking against vocabulary size. Attackers can submit multimodal audio requests with tokens equal to vocabulary size, causing out-of-bounds writes that corrupt concurrent requests' sampler state and alter repetition penalty behavior.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-93841
- https://github.com/vllm-project/vllm/pull/49081
- https://github.com/vllm-project/vllm
- https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/worker/gpu/sample/penalties.py#L241-L255
- https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/worker/gpu/sample/penalties.py#L33-L37
- https://www.vulncheck.com/advisories/vllm-through-0.29.0-adjacent-request-sampler-state-corruption-via-unvalidated-prompt-token-ids
- https://github.com/advisories/GHSA-q9hm-g73w-q6wp