CVE-2026-0281 PAN-OS: Information Disclosure Vulnerability in Management Web Interface

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 . 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.

No special configuration is required to be affected by this issue.

The risk is highest when you allow access to the management interface from external IP addresses on the internet. LOW - CVSS-BT: 2.1 / CVSS-B: 5.9 ( CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber )

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. LOW - CVSS-BT: 1.7 / CVSS-B: 5.6 ( CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber )

Palo Alto Networks is not aware of any malicious exploitation of this issue.

CWE-524 Use of Cache Containing Sensitive Information

CAPEC-141 Cache Poisoning

Version Minor Version Range Suggested Solution Cloud NGFW No action needed. PAN-OS 12.1 12.1.2 through 12.1.7-h* Upgrade to 12.1.8 or later. PAN-OS 11.2 11.2.0 through 11.2.12 Upgrade to 11.2.13 or later. PAN-OS 11.1 11.1.0 through 11.1.15-h* Upgrade to 11.1.16 or later. PAN-OS 10.2 10.2.0 through 10.2* Upgrade to 11.1.16, 11.2.13, 12.1.8 or later. All older unsupported PAN-OS versions Upgrade to a supported fixed version. Prisma Access No action needed.

The vast majority of firewalls already follow Palo Alto Networks' and industry best practices. However, if you have not already, we strongly recommend that you secure access to your management interface according to our best practice deployment guidelines . Specifically, you should restrict management interface access to only trusted internal IP addresses. Review information how to secure management access to your Palo Alto Networks firewalls: Palo Alto Networks LIVEcommunity article Palo Alto Networks official and detailed technical documentation

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