Deserialization of untrusted data in vLLM multi-node cluster configuration



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-30165
CWE-ID CWE-502
Exploitation vector Network
Public exploit N/A
Vulnerable software
vLLM
Universal components / Libraries / Libraries used by multiple products

Vendor vLLM

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Deserialization of untrusted data

EUVDB-ID: #VU121143

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-30165

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in multi-node cluster configuration within the V0 engine. A remote user can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

vLLM: 0.5.2 - 0.9.2

CPE2.3 External links

https://github.com/vllm-project/vllm/security/advisories/GHSA-9pcc-gvx5-r5wm


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###