{"id":"GHSA-gmc6-fwg3-75m5","aliases":[],"status":"published","title":"Mimekit has vulnerable dependency that can lead to denial of service","description":"### Summary\nDenial of service vulnerability.\n\n### Details\nSee: https://github.com/advisories/GHSA-447r-wph3-92pm and https://github.com/dotnet/announcements/issues/312\n\n### PoC\nUpdate System.Security.Cryptography.Pkcs to 8.0.1 so that the transitive dependency with the issue gets updated\n\n### Impact\nDenial of service vulnerability. Affects MimeKit (\u003e= v3.0.0 and \u003c= v4.7.0) when used to decrypt or verify incoming S/MIME messages as well as importing 3rd-party X.509 certificates for use with encrypting outgoing S/MIME messages.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2024-07-11T17:42:20Z","modified":"2024-11-29T05:24:42Z","fixes":[{"ecosystem":"NuGet","package":"MimeKit","fixed_in":["4.7.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"MimeKit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"4.7.1"}]}]},{"source":"osv","ecosystem":"NuGet","package":"MimeKit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"4.7.1"}]}],"versions":["3.0.0","3.1.0","3.1.1","3.2.0","3.3.0","3.4.0","3.4.1","3.4.2","3.4.3","3.5.0","3.6.0","3.6.1","4.0.0","4.1.0","4.2.0","4.3.0","4.4.0","4.5.0","4.6.0","4.7.0"]}],"references":[{"url":"https://github.com/jstedfast/MimeKit/security/advisories/GHSA-gmc6-fwg3-75m5","tags":["web"]},{"url":"https://github.com/dotnet/announcements/issues/312","tags":["web"]},{"url":"https://github.com/jstedfast/MimeKit/commit/aef4eda75525848b992ce5e1f9b87399000fffb6","tags":["web"]},{"url":"https://github.com/advisories/GHSA-447r-wph3-92pm","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gmc6-fwg3-75m5"},{"url":"https://github.com/jstedfast/MimeKit","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-gmc6-fwg3-75m5","title":"Mimekit has vulnerable dependency that can lead to denial of service","description":"### Summary\nDenial of service vulnerability.\n\n### Details\nSee: https://github.com/advisories/GHSA-447r-wph3-92pm and https://github.com/dotnet/announcements/issues/312\n\n### PoC\nUpdate System.Security.Cryptography.Pkcs to 8.0.1 so that the transitive dependency with the issue gets updated\n\n### Impact\nDenial of service vulnerability. Affects MimeKit (\u003e= v3.0.0 and \u003c= v4.7.0) when used to decrypt or verify incoming S/MIME messages as well as importing 3rd-party X.509 certificates for use with encrypting outgoing S/MIME messages.\n","status":"published","published":"2024-07-11T17:42:20Z","modified":"2024-07-31T05:03:34Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"},{"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-20"],"updated_at":"2026-11-02T14:37:56.530214Z"}],"osv":[{"id":"GHSA-gmc6-fwg3-75m5","title":"Mimekit has vulnerable dependency that can lead to denial of service","description":"### Summary\nDenial of service vulnerability.\n\n### Details\nSee: https://github.com/advisories/GHSA-447r-wph3-92pm and https://github.com/dotnet/announcements/issues/312\n\n### PoC\nUpdate System.Security.Cryptography.Pkcs to 8.0.1 so that the transitive dependency with the issue gets updated\n\n### Impact\nDenial of service vulnerability. Affects MimeKit (\u003e= v3.0.0 and \u003c= v4.7.0) when used to decrypt or verify incoming S/MIME messages as well as importing 3rd-party X.509 certificates for use with encrypting outgoing S/MIME messages.\n","status":"published","published":"2024-07-11T17:42:20Z","modified":"2024-11-29T05:24:42.652192Z","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"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:46:47.822182Z"}]}}