Description
An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web interface to obtain web session tokens. This requires a legitimate user to first click on a malicious link provided by the attacker. The security risk posed by this issue is minimized by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not impacted by this vulnerability.
The risk is highest when you allow access to the management interface from external IP addresses on the internet.
You can reduce the risk of exploitation by restricting access to a jump box that is the only system allowed to access the management interface.
Problem types
CWE-524 Use of Cache Containing Sensitive Information
Product status
All (custom)
12.1.0 (custom) before 12.1.8
11.2.0 (custom) before 11.2.13
11.1.0 (custom) before 11.1.16
10.2.0 (custom) before 10.2.18-h8
All (custom)
Timeline
| 2026-07-08: | Initial publication. |
Credits
our internal security research teams
References
security.paloaltonetworks.com/CVE-2026-0281