vLLM versions >= 0.6.3 and < 0.9.0 contain multiple regular expression denial of service (ReDoS) vulnerabilities. Several regex patterns — in vllm/lora/utils.py, the phi4mini tool parser, and the OpenAI-compatible serving chat endpoint — are susceptible to catastrophic backtracking. An attacker submitting crafted input with nested or repeated structures can trigger severe CPU consumption and performance degradation, resulting in denial of service.
References
| Link | Resource |
|---|---|
| https://github.com/vllm-project/vllm/security/advisories/GHSA-j828-28rj-hfhp | Exploit Vendor Advisory |
| https://www.vulncheck.com/advisories/vllm-regular-expression-denial-of-service-in-multiple-components | Third Party Advisory |
Configurations
History
26 Jun 2026, 20:25
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* | |
| First Time |
Vllm
Vllm vllm |
|
| References | () https://github.com/vllm-project/vllm/security/advisories/GHSA-j828-28rj-hfhp - Exploit, Vendor Advisory | |
| References | () https://www.vulncheck.com/advisories/vllm-regular-expression-denial-of-service-in-multiple-components - Third Party Advisory |
20 Jun 2026, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-20 19:16
Updated : 2026-06-26 20:25
NVD link : CVE-2025-71379
Mitre link : CVE-2025-71379
CVE.ORG link : CVE-2025-71379
JSON object : View
Products Affected
vllm
- vllm
CWE
CWE-1333
Inefficient Regular Expression Complexity