Denial of Service and Data Exposure in vLLM by vLLM Project
CVE-2025-30202

7.5HIGH

Key Information:

Vendor

Vllm-project

Status
Vllm
Vendor
CVE Published:
30 April 2025

What is CVE-2025-30202?

The vLLM inference engine is susceptible to denial of service and unintended data exposure through its use of ZeroMQ in multi-node setups. Specifically, versions from 0.5.2 to just before 0.8.5 expose an XPUB ZeroMQ socket that allows unauthorized clients to connect if network access is granted. This enables attackers to receive internal vLLM state information, which, while not immediately useful, could facilitate a denial of service condition by inundating the publisher with connections, overwhelming system resources. Users are urged to upgrade to version 0.8.5 for resolution.

Affected Version(s)

vllm >= 0.5.2, < 0.8.5

References

https://github.com/vllm-project/vllm/security/advisories/...
x_refsource_CONFIRM
https://github.com/vllm-project/vllm/pull/6183
x_refsource_MISC
https://github.com/vllm-project/vllm/commit/a0304dc504c85...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

.