{"id":"CVE-2018-21246","details":"Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.","aliases":["GHSA-gr7w-x2jp-3xgw","GO-2020-0043"],"modified":"2026-04-11T21:31:54.792314Z","published":"2020-06-15T17:15:09.620Z","references":[{"type":"ADVISORY","url":"https://bugs.gentoo.org/715214"},{"type":"ADVISORY","url":"https://github.com/caddyserver/caddy/releases/tag/v0.10.13"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/caddyserver/caddy","events":[{"introduced":"0"},{"fixed":"1845e5cf52e90390212b8bfc373df8a405b98678"},{"fixed":"694d2c9b2e1ce5596b4e8a651e76b3f312ee2a77"}],"database_specific":{"cpe":"cpe:2.3:a:caddyserver:caddy:*:*:*:*:*:*:*:*","source":["CPE_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"0.10.3"}]}}],"versions":["v0.10.0","v0.10.1","v0.10.10","v0.10.11","v0.10.12","v0.10.2","v0.10.3","v0.10.4","v0.10.5","v0.10.6","v0.10.7","v0.10.8","v0.10.9","v0.5.0","v0.5.1","v0.6.0","v0.7.0","v0.7.1","v0.7.2","v0.7.3","v0.7.4","v0.7.5","v0.7.6","v0.8-beta.1","v0.8-beta.2","v0.8-beta.3","v0.8-beta.4","v0.8.0","v0.8.1","v0.8.3","v0.9-beta.1","v0.9-beta.2","v0.9.0","v0.9.1","v0.9.2","v0.9.3","v0.9.4","v0.9.5"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-21246.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}