QUANTUM THREAT INTELLIGENCE

AL26-021: Cisco ISE Authentication Bypass Flaws, CVE-2026-76460 Added to CISA Exploited List

The Canadian Centre for Cyber Security issued alert AL26-021 for authentication bypass vulnerabilities in Cisco Identity Services Engine and ISE Passive Identity Connector. One of the CVEs has been added to CISA's Known Exploited Vulnerabilities list, so patching is urgent for any organization that uses ISE for network access control.

SOURCE

Canadian Centre for Cyber Security

DATE

September 16, 2026

Why this matters for your infrastructure

Every advance in quantum computing shortens the window for migrating long lived infrastructure off quantum-vulnerable encryption, and data captured today can be decrypted later. Fabric Networks helps energy, government, telecom and community networks move to quantum-safe encryption on their own timeline, not an adversary's.