CVE - CVE-2025-48942

CVE-ID
CVE-2025-48942	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). In versions 0.8.0 up to but excluding 0.9.0, hitting the /v1/completions API with a invalid json_schema as a Guided Param kills the vllm server. This vulnerability is similar GHSA-9hcf-v7m4-6m2j/CVE-2025-48943, 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/17248 URL:https://github.com/vllm-project/vllm/issues/17248 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-6qc9-v4r8-22xg URL:https://github.com/vllm-project/vllm/security/advisories/GHSA-6qc9-v4r8-22xg
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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