CVE-2026-100649: Vllm

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

vLLM before 0.29.0 contains a resource-limit bypass vulnerability in PyNvVideoCodec decoder allocation where sampler subclass shadowing allows independent counter increments. Unauthenticated attackers can select different sampler subclasses in video requests to exceed configured decoder limits and exhaust unaccounted GPU memory.

Affected products

• Vllm Vllm: before 0.29.0 (fixed in 0.29.0)

Published 2026-09-26. Last modified 2026-10-06.