OpenSSL security advisory (AV26-329) – Canadian Centre for Cyber Security

Serial number: AV26-329
Date: April 8, 2026

On April 7, 2026, OpenSSL published security advisories to address vulnerabilities in multiple products. Included were updates for the following:

• OpenSSL – versions 3.6.0 to versions prior to 3.6.2
• OpenSSL – versions 3.5.0 to versions prior to 3.5.6
• OpenSSL – versions 3.4.0 to versions prior to 3.4.5
• OpenSSL – versions 3.3.0 to versions prior to 3.3.7
• OpenSSL – versions 3.0.0 to versions prior to 3.0.20

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.