{"id":"CVE-2025-48942","summary":"vLLM DOS: Remotely kill vllm over http with invalid JSON schema","details":"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.","aliases":["GHSA-6qc9-v4r8-22xg","PYSEC-2025-54"],"modified":"2026-08-12T03:51:34.499748521Z","published":"2025-05-30T18:33:40.488Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48942.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-248"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48942.json"},{"type":"ADVISORY","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-6qc9-v4r8-22xg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48942"},{"type":"REPORT","url":"https://github.com/vllm-project/vllm/issues/17248"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/pull/17623"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vllm-project/vllm","events":[{"introduced":"966f933ee1cd7c9a41db60de5c7ff98657005251"},{"fixed":"58738772410c5e0d60b61db39538a9b313d2d7ad"},{"fixed":"08bf7840780980c7568c573c70a6a8db94fd45ff"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0.8.0"},{"fixed":"0.9.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48942.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}