Improper Enforcement of Behavioral Workflow Affecting botan3 package, versions <3.11.1-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.23% (15th percentile)

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  • Snyk IDSNYK-ALPINE324-BOTAN3-17296240
  • published11 Jun 2026
  • disclosed7 Apr 2026

Introduced: 7 Apr 2026

CVE-2026-34582  (opens in a new tab)
CWE-841  (opens in a new tab)

How to fix?

Upgrade Alpine:3.24 botan3 to version 3.11.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream botan3 package and not the botan3 package as distributed by Alpine. See How to fix? for Alpine:3.24 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1