CVE - CVE-2025-48943

CVE-ID
CVE-2025-48943	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff URL:https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff MISC:https://github.com/vllm-project/vllm/issues/17313 URL:https://github.com/vllm-project/vllm/issues/17313 MISC:https://github.com/vllm-project/vllm/pull/17623 URL:https://github.com/vllm-project/vllm/pull/17623 MISC:https://github.com/vllm-project/vllm/security/advisories/GHSA-9hcf-v7m4-6m2j URL:https://github.com/vllm-project/vllm/security/advisories/GHSA-9hcf-v7m4-6m2j
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20250528	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250528)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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