{"id":"GHSA-vfm7-4h43-gp6m","summary":"Duplicate Advisory: vLLM Vulnerable to Regular Expression Denial of Service","details":"### Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-j828-28rj-hfhp. This link is maintained to preserve external references.\n\n### Original Description\n\nvLLM 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resulting in denial of service.","modified":"2026-09-11T16:02:22.806858844Z","published":"2026-06-20T21:31:21Z","withdrawn":"2026-09-11T15:45:34Z","database_specific":{"cwe_ids":["CWE-1333"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-09-11T15:45:34Z","nvd_published_at":"2026-06-20T19:16:23Z"},"references":[{"type":"WEB","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":"PACKAGE","url":"https://github.com/vllm-project/vllm"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/vllm-regular-expression-denial-of-service-in-multiple-components"}],"affected":[{"package":{"name":"vllm","ecosystem":"PyPI","purl":"pkg:pypi/vllm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6.3"},{"fixed":"0.9.0"}]}],"versions":["0.6.3","0.6.3.post1","0.6.4","0.6.4.post1","0.6.5","0.6.6","0.6.6.post1","0.7.0","0.7.1","0.7.2","0.7.3","0.8.0","0.8.1","0.8.2","0.8.3","0.8.4","0.8.5","0.8.5.post1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vfm7-4h43-gp6m/GHSA-vfm7-4h43-gp6m.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:L"},{"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"}]}