High severity · published Oct 25, 2026
CVE-2026-116179
vLLM 0.18.0 before 0.31.0 Memory Exhaustion via media_io_kwargs num_frames Override
New
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VL
vllm · vllm-project
0.18.0 before 0.31.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116179
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116179
github.com
https://github.com/vllm-project/vllm/security/advisories/GHSA-4m6g-h9mv-wqjc
www.vulncheck.com
https://www.vulncheck.com/advisories/vllm-0.18.0-before-0.31.0-memory-exhaustion-via-media-io-kwargs-num-frames-override
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