{"id":"AZL-81942","summary":"CVE-2026-34582 affecting package botan2 2.14.0-2","details":"Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which entirely omits Certificate, CertificateVerify, and the Finished message and instead sends application data records. This vulnerability is fixed in 3.11.1.","modified":"2026-08-30T05:24:52Z","published":"2026-04-07T22:16:22Z","upstream":["CVE-2026-34582"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34582"}],"affected":[{"package":{"name":"botan2","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/botan2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.14.0-2"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81942.json"}}],"schema_version":"1.9.0"}