CVE-2019-16263
mediumpriority · track · 30EPSS 0.010 · 63 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–7.4
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/cnnvd
- https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.m#L75-L81cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-16263cnnvd
- https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdfcnnvd
- https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/enisa_euvd
- https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.m#L75-L81enisa_euvd
- https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdfenisa_euvd
- https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/Third Party Advisorynvd
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