Uncontrolled Resource Consumption in vLLM by vllm-project
CVE-2026-114055

8.7HIGH

Key Information:

Vendor

Vllm-project

Status
Vllm
Vendor
CVE Published:
21 October 2026

What is CVE-2026-114055?

The vLLM library versions prior to 0.31.0 are susceptible to an uncontrolled resource consumption vulnerability, enabling remote clients to manipulate multimodal processor parameters. By submitting oversized values for parameters such as image size, patch count, crop count, or frame count, an attacker can cause memory exhaustion, leading to service disruption on shared servers. This vulnerability is applicable to several processors including Isaac, InternVL, and H2OVL, highlighting the need for immediate mitigation to protect server resources.

Affected Version(s)

vllm 0.7.3 < 0.31.0

vllm 0.31.0

References

https://github.com/vllm-project/vllm/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/vllm-0.7.3-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

Chedrian07
jperezdealgaba
DarkLight1337
.