A cleartext storage of sensitive information vulnerability in Palo Alto Networks Expedition allows an authenticated attacker to reveal firewall usernames, passwords, and API keys generated using those credentials.
https://securityaffairs.com/169599/security/palo-alto-fixed-critical-flaws-in-pan-os-firewalls.html
https://www.horizon3.ai/attack-research/palo-alto-expedition-from-n-day-to-full-compromise/