CVE-2026-100649GHSA-j682-9xp5-rrf3
vLLM before 0.29.0 Resource Limit Bypass via Sampler Subclass
vllm-project vllm
CVSS
6.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 26% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 0.29.0vllmCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
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.
Text from CVE List
Affected versions 2
- vllmaffected: all versions before 0.29.0CVE List
- vllmunaffected: 0.29.0CVE List