CVE-2026-34582

CRITICAL

9.1

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung9.1

SchweregradCRITICAL

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht4/7/2026

Zuletzt geandert4/17/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

botan_project:botan

Schwachen (CWE)

CWE-841

Referenzen

https://github.com/randombit/botan/security/advisories/GHSA-pxcj-9ppx-g86g(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

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