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.
Fix
Public exploits 3
- PAN-OS GlobalProtect CAS CVE-2026-0265 Vulnerability Checker (auxiliary module) Metasploit · 2026-05-21
- BishopFox/CVE-2026-0265-check PoC on GitHub
- tstephens1080/palo-alto-cve-2026-0265-checker PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
- https://security.paloaltonetworks.com/CVE-2026-0265 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.2 · paloaltonetworks, siemensNVD modified 2026-10-26 17:10
Affected (CPE criteria) 162
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References 2
- https://security.paloaltonetworks.com/CVE-2026-0265 Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-967325.html Third Party Advisory