{"id":"CVE-2018-20200","aliases":["DEBIAN-CVE-2018-20200","EUVD-2018-12767","GHSA-qvh7-2qrg-6v75"],"status":"disputed","title":"CertificatePinner.java in OkHttp 3.x through 3.12.0 allows man-in-the-middle attackers to bypass...","description":"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","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02477,"percentile":0.84677,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2019-04-18T18:31:52Z","modified":"2026-10-20T10:51:25Z","products":[{"vendor":"squareup","product":"okhttp"}],"references":[{"url":"https://square.github.io/okhttp/3.x/okhttp/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/square/okhttp/releases","tags":["x_refsource_MISC","x_transferred","Product","package"]},{"url":"https://github.com/square/okhttp/commits/master","tags":["x_refsource_MISC","x_transferred","Patch","Third Party 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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","status":"disputed","published":"2019-04-18T18:31:52Z","modified":"2024-08-05T11:58:19.134Z","updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-12767","description":"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","status":"published","published":"2019-04-18T18:31:52Z","modified":"2024-08-05T11:58:19Z","updated_at":"2026-11-03T02:39:30.889297Z"}],"ghsa":[{"id":"GHSA-qvh7-2qrg-6v75","title":"CertificatePinner.java in OkHttp 3.x through 3.12.0 allows man-in-the-middle attackers to bypass...","description":"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.","status":"published","published":"2022-05-24T21:59:43Z","modified":"2024-03-21T03:33:35Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:55:41.504227Z"}],"nvd":[{"id":"CVE-2018-20200","description":"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","status":"disputed","published":"2019-04-18T19:29:01.347Z","modified":"2026-06-17T01:52:27.17Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:04:55.136632Z"}],"osv":[{"id":"CVE-2018-20200","description":"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","status":"published","published":"2019-04-18T19:29:01.347Z","modified":"2026-10-20T10:51:25.812844193Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"},{"id":"DEBIAN-CVE-2018-20200","description":"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","status":"withdrawn","published":"2019-04-18T19:29:01.347Z","modified":"2025-12-28T16:58:59.218758Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.57382Z"}]}}