Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck
CVE-2026-100649vLLM before 0.29.0 Resource Limit Bypass via Sampler Subclass
Low 3.7
In plain English
A low-severity resource allocation without limits in vllm from vllm-project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.3%top 72.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| vllm-project | vllm | 0 – before 0.29.0 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- GitHub Security Advisory (GHSA-j682-9xp5-rrf3) vendor-advisory
- VulnCheck Advisory: vLLM before 0.29.0 Resource Limit Bypass via Sampler Subclass third-party-advisory