CVE-2026-0283
PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)
Description
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Weakness: CWE-306
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Palo Alto Networks | Cloud NGFW | Firewall / NGFW | cna-assigner |
| Palo Alto Networks | PAN-OS | Firewall / NGFW | cna-assigner |
| Palo Alto Networks | Prisma Access | SASE / SSE / Secure Web | cna-assigner |
Vendor-reported affected versions (3)
- Palo Alto Networks · Cloud NGFW
- Palo Alto Networks · PAN-OS
- Palo Alto Networks · Prisma Access
Credit
Vaibhav Nagar (internal reporter) and our internal security research teams
Vendor remediation
Version Minor Version Suggested Solution Cloud NGFW All No action needed. PAN-OS 12.1 12.1.5 through 12.1.7-h* Upgrade to 12.1.7-h2 or 12.1.8 or later. 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h8 or 12.1.8 or later. PAN-OS 11.2 11.2.11 through 11.2.12 Upgrade to 11.2.13 or later. 11.2.8 through 11.2.10-h* Upgrade to 11.2.10-h12 or 11.2.13 or later. 11.2.5 through 11.2.7-h* Upgrade to 11.2.7-h18 or 11.2.13 or later. 11.2.0 through 11.2.4-h* Upgrade to 11.2.4-h20 or 11.2.13 or later. PAN-OS 11.1 11.1.14 through 11.1.15 Upgrade to 11.1.16 or later. 11.1.11 through 11.1.13-h* Upgrade to 11.1.13-h9 or 11.1.16 or later. 11.1.8 through 11.1.10-h* Upgrade to 11.1.10-h30 or 11.1.16 or later. 11.1.7 through 11.1.7-h* Upgrade to 11.1.7-h8 or 11.1.16 or later. 11.1.5 through 11.1.6-h* Upgrade to 11.1.6-h35 or 11.1.16 or later. 11.1.0 through 11.1.4-h* Upgrade to 11.1.4-h35 or 11.1.16 or later. PAN-OS 10.2 10.2.17 through 10.2.18-h* Upgrade to 10.2.18-h8 or later. 10.2.14 through 10.2.16-h* Upgrade to 10.2.16-h9 or later. 10.2.11 through 10.2.13-h* Upgrade to 10.2.13-h23 or later. 10.2.8 through 10.2.10-h* Upgrade to 10.2.10-h39 or later. 10.2.0 through 10.2.7-h* Upgrade to 10.2.7-h36 or later. All older unsupported PAN-OS versions Upgrade to a supported fixed version.Prisma Access All No action needed.