Resource Exhaustion Vulnerability in vLLM API from Vendor vLLM
CVE-2026-116179

8.7HIGH

Key Information:

Vendor

Vllm-project

Status
Vllm
Vendor
CVE Published:
25 October 2026

What is CVE-2026-116179?

The vLLM API versions prior to 0.31.0 have a vulnerability that allows malicious API clients to bypass the frame count limit for video/jpeg data. By manipulating the 'num_frames' parameter through 'media_io_kwargs', attackers can set 'num_frames' to -1. This enables the loading of an unbounded number of frames, which can lead to excessive memory consumption, potentially crashing the API frontend and interrupting service availability.

Affected Version(s)

vllm 0.18.0 < 0.31.0

vllm 0.31.0

References

https://github.com/vllm-project/vllm/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/vllm-0.18.0-before-0...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

tonghuaroot
jperezdealgaba
.