Local Access Vulnerability in vllm-project vLLM Product by vllm-project
CVE-2026-90713

4.8MEDIUM

Key Information:

Vendor

Vllm-project

Status
Vllm
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90713?

A vulnerability has been identified in the vLLM product by vllm-project, specifically within the TiktokenTokenizer::new function located in the tiktoken vocab File Handler. This flaw allows an attacker with local access to manipulate the component, potentially leading to a denial of service. The exploit has been publicly disclosed and is currently being addressed through a pending pull request aimed at mitigating the issue.

Affected Version(s)

vLLM 0.1

vLLM 0.2

vLLM 0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-90713 - Proof of Concept

References

https://vuldb.com/vuln/403267
vdb-entrytechnical-description
https://vuldb.com/vuln/403267/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90713
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zyz3366 (VulDB User)
VulDB CNA Team
.