| Component | vLLM |
| Severity | medium (CVSS 5.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Published (NVD) | 2026-09-26 |
| Last modified | 2026-10-06 |
| Affected versions | vllm < 0.29.0 |
| Fixed in | 0.29.0 |
| Weakness | CWE-400 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade vLLM to
0.29.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-100648
- https://github.com/vllm-project/vllm/security/advisories/GHSA-jcq2-4gch-5qhf
- https://www.vulncheck.com/advisories/vllm-before-0.29.0-uncontrolled-resource-consumption-via-audio-decoding
Read more
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