CVE-2026-0317: PAN-OS: Denial of Service Vulnerability
CVE-2026-0317
Summary
Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captive Portal) service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payload.
The security risk posed by this issue is minimized when the management interface and access to the User-ID™ Authentication Portal is restricted 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 is not affected by this vulnerability.
Products covered
Cloud NGFW
PAN-OS
Prisma Access
PAN-OS 12.1
PAN-OS 11.2
PAN-OS 11.1
PAN-OS 10.2
Prisma Access 12.1
Show 2 more products
Prisma Access 11.2
Prisma Access 10.2
Remediation
Version | Minor Version | 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 12.1 | 12.1.2 through 12.1.7-h* | Upgrade to 12.1.8 or later.* |
Prisma Access 11.2 | 11.2.0 through 11.2* | Upgrade to 12.1.8 or later.* |
Prisma Access 10.2 | 10.2.0 through 10.2* | Upgrade to 12.1.8 or later.* |
* See the note under Product Status for information regarding Prisma Access upgrades.
Vendor-listed fixes
Cloud NGFW All
PAN-OS 12.1 >= 12.1.8
PAN-OS 11.2 >= 11.2.13
PAN-OS 11.1 >= 11.1.16
PAN-OS 10.2 None
Prisma Access 12.1 >= 12.1.8*
Prisma Access 11.2 None*
Prisma Access 10.2 None*
CVEs in this advisory 1
Updates
- Published by Palo Alto Networks
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.