{"id":"CVE-2023-27530","aliases":["GHSA-3h57-hmj3-gj3p"],"url":"https://o3.security/vulnerability/CVE-2023-27530","summary":"Rack has possible DoS Vulnerability in Multipart MIME parsing","details":"A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart parsing to take longer than expected.","published":"2023-03-10T00:00:00Z","modified":"2026-07-15T01:48:58.663646487Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"rack","fixedVersion":"2.0.9.3"},{"ecosystem":"RubyGems","name":"rack","fixedVersion":"2.1.4.3"},{"ecosystem":"RubyGems","name":"rack","fixedVersion":"2.2.6.3"},{"ecosystem":"RubyGems","name":"rack","fixedVersion":"3.0.4.2"}],"fix":null,"references":[{"type":"WEB","url":"https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27530.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27530"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231208-0015/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5530"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00017.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:58.663646487Z"}}