NetSight
low3.7

CVE-2026-114049

vLLM before 0.31.0 contains a cross-request mask leak in InputBatch.condense() that allows remote attackers to constrain other clients' outputs by leaving stal…

Impact

vLLM before 0.31.0 contains a cross-request mask leak in InputBatch.condense() that allows remote attackers to constrain other clients' outputs by leaving stale allowed_token_ids rows. Attackers can submit concurrent constrained generate requests, including via unauthenticated /invocations, so recycled batch slots apply their token allowlist to victims' unrestricted requests.

Affected products

ProductAffected versions
VLLM
before 0.31.0

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References