Resource exhaustion in Vllm
CVE-2026-100648
vllm before 0.29.0 fails to enforce VLLM_MAX_AUDIO_CLIP_FILESIZE_MB limit in multimodal chat audio decoding, allowing unauthenticated clients to bypass file size restrictions. Attackers can submit oversized audio files through chat endpoints to consume excessive memory and CPU resources during decoding.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-jcq2-4gch-5qhf) (vendor-advisory, Vendor Advisory)
- VulnCheck Advisory: vllm before 0.29.0 Uncontrolled Resource Consumption via Audio Decoding (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-100648?
- CVE-2026-100648 is a medium-severity vulnerability in Vllm, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-09-26.
- How severe is CVE-2026-100648?
- Medium severity. CVSS v3 base score is 5.3 out of 10.