{"id":"CVE-2018-20200","details":"CertificatePinner.java in OkHttp 3.x through 3.12.0 allows man-in-the-middle attackers to bypass certificate pinning by changing SSLContext and the boolean values while hooking the application. NOTE: This id is disputed because some parties don't consider this is a vulnerability. Their rationale can be found in https://github.com/square/okhttp/issues/4967","modified":"2026-05-18T12:11:20.122189Z","published":"2019-04-18T19:29:01.347Z","references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r0dd7ff197b2e3bdd80a0326587ca3d0c22e10d1dba17c769d6da7d7a%40%3Cuser.flink.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r71100f23778d72fbd8be8baa6baffc159b9c4f3fae3db4826bdc8ab8%40%3Cissues.flink.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r78bfce980843be61a55615a7680bbf7ac751a9b3515231eab2d32068%40%3Cissues.flink.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rc436d58531754ac8fe20340044566518ea4dce66aeff9193356a225d%40%3Cissues.flink.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/recce57e195fbdd856dcf1933c136a8a66d7b02e05e3580f44d75a640%40%3Cissues.flink.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rfd1eed12ba2a5dff37229edd60fc84a25517815d848994146a15af91%40%3Cissues.flink.apache.org%3E"},{"type":"ADVISORY","url":"https://square.github.io/okhttp/3.x/okhttp/"},{"type":"REPORT","url":"https://github.com/square/okhttp/issues/4967"},{"type":"FIX","url":"https://github.com/square/okhttp/commits/master"},{"type":"PACKAGE","url":"https://github.com/square/okhttp/releases"},{"type":"EVIDENCE","url":"https://cxsecurity.com/issue/WLB-2018120252"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/square/okhttp","events":[{"introduced":"c9b812a4ab75bfbf1e1de439ee719fa700a592f1"},{"last_affected":"7f63a35ab1a8344279d2e84e07884a45f45f0690"}],"database_specific":{"extracted_events":[{"introduced":"3.0.0"},{"last_affected":"3.12.0"}],"cpe":"cpe:2.3:a:squareup:okhttp:*:*:*:*:*:*:*:*","source":"CPE_FIELD"}}],"versions":["parent-3.12.0","parent-3.10.0","parent-3.9.1","list","parent-3.9.0","parent-3.8.0","parent-3.7.0","parent-3.6.0","parent-3.5.0","parent-3.4.0","parent-3.4.0-RC1","parent-3.3.1","parent-3.3.0","parent-3.2.0","parent-3.1.2","parent-3.1.1","parent-3.1.0","parent-3.0.1","parent-3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20200.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}