Description

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.

INFO

Published Date :

2026-04-07T21:13:49.281Z

Last Modified :

2026-04-08T15:41:21.671Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34582 vulnerability.

Vendors Products
Randombit
  • Botan
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34582.

URL Resource
https://github.com/randombit/botan/security/advisories/GHSA-pxcj-9ppx-g86g cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-34582 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-34582 cve-icon
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CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact