{"id":"CVE-2020-36661","aliases":["EUVD-2020-24106","GHSA-wjp8-5g4j-4rjj"],"status":"published","title":"Kong lua-multipart multipart.lua is_header redos","description":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0092,"percentile":0.60597,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1333"],"published":"2023-02-12T20:31:03Z","modified":"2026-10-20T10:54:21Z","products":[{"vendor":"kong","product":"lua-multipart"},{"vendor":"konghq","product":"multipart"}],"references":[{"url":"https://vuldb.com/?id.220642","tags":["vdb-entry","technical-description","x_transferred","Third Party Advisory","advisory"]},{"url":"https://vuldb.com/?ctiid.220642","tags":["signature","permissions-required","x_transferred","Permissions Required","Third Party Advisory","report"]},{"url":"https://github.com/Kong/lua-multipart/pull/34","tags":["issue-tracking","x_transferred","Issue Tracking","Patch","fix"]},{"url":"https://github.com/Kong/lua-multipart/commit/d632e5df43a2928fd537784a99a79dec288bf01b","tags":["patch","x_transferred","Patch","fix"]},{"url":"https://github.com/Kong/lua-multipart/releases/tag/0.5.9-1","tags":["patch","x_transferred","Patch","Release Notes","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36661"},{"url":"https://github.com/advisories/GHSA-wjp8-5g4j-4rjj"}],"sources":{"cve":[{"id":"CVE-2020-36661","title":"Kong lua-multipart multipart.lua is_header redos","description":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.","status":"published","published":"2023-02-12T20:31:03.522Z","modified":"2025-03-24T18:40:00.463Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"},{"version":"3.0","score":3.5,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"},{"version":"2.0","score":2.7,"vector":"AV:A/AC:L/Au:S/C:N/I:N/A:P","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2020-24106","description":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.","status":"published","published":"2023-02-12T20:31:03Z","modified":"2025-03-24T18:40:00Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T20:52:54.153762Z"}],"ghsa":[{"id":"GHSA-wjp8-5g4j-4rjj","title":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic....","description":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The name of the patch is d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.","status":"published","published":"2023-02-12T21:30:27Z","modified":"2023-03-04T05:08:13Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:54:16.14777Z"}],"nvd":[{"id":"CVE-2020-36661","description":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.","status":"published","published":"2023-02-12T21:15:10.65Z","modified":"2026-06-17T03:15:55.757Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":2.7,"vector":"AV:A/AC:L/Au:S/C:N/I:N/A:P","level":"low","assessor":"secondary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:06:47.286386Z"}],"osv":[{"id":"CVE-2020-36661","description":"A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.","status":"published","published":"2023-02-12T21:15:10.65Z","modified":"2026-10-20T10:54:21.814612718Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.936975Z"}]}}