Disclaimer

Known affected versions were inferred from fixed-version data and were not explicitly confirmed by the vendor: 8.1.12, 9.1.0

The earliest recollection of this bug is traced back to PAN-OS 8.1.13 - July 22, 2025. This bug is fixed in PAN-OS versions 8.1.13, 9.1.1. A fix was made to address a cleartext transmission of sensitive information vulnerability in Palo Alto Networks PAN-OS and Panorama that disclosed an authenticated PAN-OS administrator's PAN-OS session cookie ( CVE-2020-2013 ). For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-13-addressed-issues https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-1-addressed-issues