VDB
CVE-2025-48943
CVE-2025-48943
PUBLISHED
CVSS 6.5 MEDIUM
vLLM is an inference and serving engine for large language models (LLMs). Version 0.8.0 up to but excluding 0.9.0 have a Denial of Service (ReDoS) that causes the vLLM server to crash if an invalid regex was provided while using structured output. This vulnerability is similar to GHSA-6qc9-v4r8-22xg/CVE-2025-48942, but for regex instead of a JSON schema. Version 0.9.0 fixes the issue.
EPSS 0.24% · 46.9th percentile
Risk Scores
CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.24%
46.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| vllm-project | vllm | >= 0.8.0, < 0.9.0 |
| vllm | vllm | 0.8.0 |
| PyPI | vllm | 0.8.0 |
Timeline
- Jan 21, 1970 Security Advisory
- May 28, 2025 CVE Published
- May 30, 2025 PoC Published
- May 30, 2025 PoC Published
- May 31, 2025 EPSS Score
- Jun 2, 2025 Coalition ESS Score
- Jun 6, 2025 Coalition ESS Score
- Jun 11, 2025 EPSS Score
- Jun 19, 2025 Coalition ESS Score
- Jun 22, 2025 EPSS Score
- Jun 24, 2025 Coalition ESS Score
- Jun 27, 2025 CVE Updated
References
- https://github.com/vllm-project/vllm/security/advisories/GHSA-9hcf-v7m4-6m2j url
- https://github.com/vllm-project/vllm/issues/17313 url
- https://github.com/vllm-project/vllm/pull/17623 url
- https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff url
- https://nvd.nist.gov/vuln/detail/CVE-2025-48943 advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2025-55.yaml url
- https://github.com/vllm-project/vllm package