PT-2026-120175 · Vllm · Vllm

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CVE-2026-114049

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Published

2026-10-21

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Updated

2026-10-21

CVSS v3.1

3.7

Low

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-114049

Affected Products

Vllm