{"id":"CVE-2019-16263","aliases":["EUVD-2019-7066","GHSA-9495-4rpc-2jcg"],"status":"published","title":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com...","description":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01025,"percentile":0.63805,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2019-10-07T11:19:26Z","modified":"2026-10-20T10:50:46Z","products":[{"vendor":"twitter","product":"twitter_kit"}],"references":[{"url":"https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.m#L75-L81","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdf","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-16263"},{"url":"https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios"},{"url":"https://github.com/advisories/GHSA-9495-4rpc-2jcg"}],"sources":{"cve":[{"id":"CVE-2019-16263","description":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.","status":"published","published":"2019-10-07T11:19:26Z","modified":"2024-08-05T01:10:41.667Z","updated_at":"2026-11-02T14:32:23.189113Z"}],"euvd":[{"id":"EUVD-2019-7066","description":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.","status":"published","published":"2019-10-07T11:19:26Z","modified":"2024-08-05T01:10:41Z","updated_at":"2026-11-03T02:40:33.71788Z"}],"ghsa":[{"id":"GHSA-9495-4rpc-2jcg","title":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com...","description":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.","status":"published","published":"2022-05-24T16:58:02Z","modified":"2024-04-04T02:10:04Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:56:07.143453Z"}],"nvd":[{"id":"CVE-2019-16263","description":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.","status":"published","published":"2019-10-07T12:15:11.68Z","modified":"2026-06-17T02:22:01.44Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"CVE-2019-16263","description":"The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.","status":"published","published":"2019-10-07T12:15:11.68Z","modified":"2026-10-20T10:50:46.395193316Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:11.361782Z"}]}}