High 7.5Published Oct 25, 2026

CVE-2026-116179vLLM 0.18.0 before 0.31.0 Memory Exhaustion via media_io_kwargs num_frames Override

Updated under an hour ago (Oct 28, 2026, 9:10 AM ET)

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It affects vllm-project vllm. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

vLLM from 0.18.0 before 0.31.0 contains a resource exhaustion vulnerability that allows API clients to bypass the video/jpeg frame-count cap by overriding num_frames through media_io_kwargs. Attackers can set num_frames to -1 with a large inline video so VideoMediaIO.load_base64 decodes every frame, exhausting memory and crashing the API frontend.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 25, 2026

Affected products

Affected products

vllm-project vllm vllm_project:vllm (from the name)	from 0.18.0 before 0.31.0; 0.31.0 not affected	CNA record

References

References

https://github.com/vllm-project/vllm/security/advisories/GHSA-4m6g-h9mv-wqjc	vendor-advisory
https://www.vulncheck.com/advisories/vllm-0.18.0-before-0.31.0-memory-exhaustion-via-media-io-kwargs-num-frames-override	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.