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CVE-2026-0265

PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled PUBLISHED

Description (CNA)

An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled. The risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used. The risk of this issue is greatly reduced if you secure access to the management web interface by restricting access 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.

Affected (CNA)

Vendor / productVersions
Palo Alto Networks / Cloud NGFWunaffected All
Palo Alto Networks / PAN-OSaffected 12.1.0 before 12.1.7, 12.1.4-h5; affected 11.2.0 before 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17; affected 11.1.0 before 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33; affected 10.2.0 before 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34
Palo Alto Networks / Prisma Accessunaffected All

CWE

CWE-347

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

siemens-SADP

No English description supplied.