{"affected":[{"defaultStatus":"unaffected","ecosystem":"pypi","packageName":"vllm","product":"vllm","source":"CNA: VulnCheck","vendor":"vllm","versions":[{"lessThan":"0.9.0","status":"affected","version":"0.6.3","versionType":"semver"},{"status":"unaffected","version":"0.9.0","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"PyPI","packageName":"vllm","product":"vllm","source":"OSV GHSA-j828-28rj-hfhp","vendor":"","versions":[{"status":"affected","version":"0.6.3","versionType":"PyPI"},{"status":"affected","version":"0.6.3.post1","versionType":"PyPI"},{"status":"affected","version":"0.6.4","versionType":"PyPI"},{"status":"affected","version":"0.6.4.post1","versionType":"PyPI"},{"status":"affected","version":"0.6.5","versionType":"PyPI"},{"status":"affected","version":"0.6.6","versionType":"PyPI"},{"status":"affected","version":"0.6.6.post1","versionType":"PyPI"},{"status":"affected","version":"0.7.0","versionType":"PyPI"},{"status":"affected","version":"0.7.1","versionType":"PyPI"},{"status":"affected","version":"0.7.2","versionType":"PyPI"},{"status":"affected","version":"0.7.3","versionType":"PyPI"},{"status":"affected","version":"0.8.0","versionType":"PyPI"},{"status":"affected","version":"0.8.1","versionType":"PyPI"},{"status":"affected","version":"0.8.2","versionType":"PyPI"},{"status":"affected","version":"0.8.3","versionType":"PyPI"},{"status":"affected","version":"0.8.4","versionType":"PyPI"},{"status":"affected","version":"0.8.5","versionType":"PyPI"},{"status":"affected","version":"0.8.5.post1","versionType":"PyPI"},{"events":[{"introduced":"0.6.3"},{"fixed":"0.9.0"}],"status":"unknown","version":"0.6.3","versionType":"ECOSYSTEM"}]}],"cveId":"CVE-2025-71379","cwes":["CWE-1333"],"description":"vLLM versions >= 0.6.3 and < 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.","epss":{"date":"2026-11-08","percentile":0.41725,"score":0.00481},"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":4.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1794146431699,"publishedAt":1781980029485,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-j828-28rj-hfhp"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vllm-regular-expression-denial-of-service-in-multiple-components"},{"source":"OSV / GitHub Security Advisories","tags":["advisory"],"url":"https://github.com/advisories/GHSA-j828-28rj-hfhp"},{"source":"OSV / GitHub Security Advisories","tags":["osv"],"url":"https://osv.dev/vulnerability/GHSA-j828-28rj-hfhp"}],"remediation":[{"kind":"fix","source":"OSV GHSA-j828-28rj-hfhp","text":"vllm (PyPI): OSV reports a fixed version 0.9.0. Check the advisory for supported release branches.","url":"https://github.com/advisories/GHSA-j828-28rj-hfhp"}],"revision":"8d0f1b28cc24bcca879608f3742e565f81410d84116547e68c18e01612128c25","sources":[{"modifiedAt":1794146431699,"name":"CNA: VulnCheck","retrievedAt":1794146989476,"url":"https://www.cve.org/CVERecord?id=CVE-2025-71379"},{"modifiedAt":1786090335960,"name":"OSV / GitHub Security Advisories","retrievedAt":1794146989999,"url":"https://osv.dev/vulnerability/GHSA-j828-28rj-hfhp"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794150586809,"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-71379"}],"ssvc":{"assessedAt":1782150860295,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"vllm - Regular Expression Denial of Service in Multiple Components","updatedAt":1794150586809}