{"id":"CVE-2025-71379","summary":"vllm - Regular Expression Denial of Service in Multiple Components","details":"vLLM versions \u003e= 0.6.3 and \u003c 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.","aliases":["GHSA-j828-28rj-hfhp"],"modified":"2026-07-08T08:12:20.490995692Z","published":"2026-06-20T18:27:09.485Z","database_specific":{"cwe_ids":["CWE-1333"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71379.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71379.json"},{"type":"ADVISORY","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-j828-28rj-hfhp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71379"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/vllm-regular-expression-denial-of-service-in-multiple-components"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vllm-project/vllm","events":[{"introduced":"fd47e57f4b0d5f7920903490bce13bc9e49d8dba"},{"fixed":"58738772410c5e0d60b61db39538a9b313d2d7ad"}],"database_specific":{"cpe":"cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0.6.3"},{"fixed":"0.9.0"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["v0.8.4","v0.8.3rc1","v0.8.2","v0.8.1","v0.8.0rc2","v0.8.0rc1","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.6.post1","v0.6.6","v0.6.5","v0.6.4.post1","v0.6.4","v0.6.3.post1","v0.6.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71379.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}