{"schema_version":"1.9.0","id":"CVE-2023-27530","published":"2023-03-10T00:00:00Z","modified":"2026-08-12T03:51:10.718089928Z","aliases":["GHSA-3h57-hmj3-gj3p"],"related":["ALSA-2023:2652","ALSA-2023:3082","SUSE-SU-2023:0725-1","SUSE-SU-2023:2280-1","SUSE-SU-2023:2294-1","SUSE-SU-2023:2295-1","SUSE-SU-2023:2304-1","SUSE-SU-2023:2781-1","openSUSE-SU-2024:12773-1","openSUSE-SU-2024:12784-1","openSUSE-SU-2024:12886-1","openSUSE-SU-2024:13726-1","openSUSE-SU-2024:13727-1","openSUSE-SU-2025:14811-1","openSUSE-SU-2025:14875-1","openSUSE-SU-2026:10286-1","openSUSE-SU-2026:10358-1"],"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.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rack/rack","events":[{"introduced":"0"},{"fixed":"9996d403584fb7609708f582f7647868b4444949"},{"introduced":"879ae7163a399a9ed36d876668f4ecae4ae8b9e4"},{"fixed":"7bdc55dd21ec76811ad74c1ae14c1588d2f2ca49"},{"introduced":"39d501a28c1fe51284addfe6dacffafb69d49849"},{"fixed":"d6b5b2bab88f458fb048133604faebea952d8133"},{"introduced":"52901caf09ebcda879512a8605059963a49df55d"},{"fixed":"5c18f306ef0d26917d490aa1f686dd68de738384"}],"database_specific":{"cpe":"cpe:2.3:a:rack:rack:*:*:*:*:*:ruby:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.0.9.3"},{"introduced":"2.1.0"},{"fixed":"2.1.4.3"},{"introduced":"2.2.0"},{"fixed":"2.2.6.3"},{"introduced":"3.0.0"},{"fixed":"3.0.4.2"}],"source":"CPE_RANGE"}}],"versions":["v2.0.9.2","v2.1.4.2","v2.2.6.2","v3.0.4.1","v2.2.6.1","2.0.9.1","v2.2.6","v3.0.4","v3.0.3","v2.2.5","2.2.4","v3.0.2","v3.0.1","3.0.0","2.1.4","2.0.9","2.2.3","v2.2.2","2.1.3","2.1.2","v2.2.1","2.2.0","2.1.1","2.0.8","2.1.0","2.0.7","2.0.6","2.0.4","2.0.3","2.0.2","2.0.1","2.0.0","2.0.0.rc1","2.0.0.alpha","1.6.0.beta","1.5.1","1.5.0","1.4.1","1.4.0","1.3.0","1.3.0.beta2","1.3.0.beta","1.0","0.3","0.2","0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-27530.json"}}],"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"}],"database_specific":{"cna_assigner":"hackerone","cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27530.json","unresolved_ranges":[{"extracted_events":[{"introduced":"3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3"},{"last_affected":"3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3"}],"source":"AFFECTED_FIELD"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}