CVE-2026-0282 in PAN-OS
Summary
by MITRE • 07/09/2026
A file deletion vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web interface to delete files from a temporary directory.
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 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.
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Analysis
by VulDB Data Team • 07/09/2026
This vulnerability represents a critical file deletion flaw in Palo Alto Networks PAN-OS software that exposes organizations to potential unauthorized file removal operations. The vulnerability exists within the management web interface component of the software, creating an attack vector where unauthenticated adversaries can manipulate system files located in temporary directories. According to industry standards such as CWE-22, this falls under path traversal or directory traversal vulnerabilities where improper input validation allows attackers to access restricted file systems. The flaw specifically targets the temporary directory structure, which typically contains system-generated files, logs, and potentially sensitive operational data that could be leveraged for further exploitation.
The technical implementation of this vulnerability exploits the lack of proper authentication checks within the management interface's file handling mechanisms. Attackers with mere network access can send crafted requests that bypass normal authorization protocols to execute deletion commands against temporary file locations. This represents a significant deviation from standard security practices where management interfaces should enforce strict authentication and authorization controls before allowing any file system modifications. The vulnerability demonstrates poor input sanitization and inadequate access control enforcement, which aligns with ATT&CK technique T1078.004 for valid accounts and T1059.001 for command and script injection, as attackers could potentially escalate privileges through file manipulation.
The operational impact of this vulnerability extends beyond simple file deletion, as temporary directories often contain system logs, configuration backups, and runtime data that could be crucial for forensic analysis or system recovery operations. Organizations running PA-Series and VM-Series firewalls, as well as Panorama systems, face potential disruption to their security infrastructure if attackers exploit this weakness. The vulnerability affects the core management functionality of these devices, potentially leading to service interruption, loss of critical operational data, and compromised security posture. According to NIST guidelines for cybersecurity risk management, such vulnerabilities require immediate attention when they enable unauthorized file system modifications without proper authentication.
Organizations should implement multiple layers of defense to mitigate this vulnerability effectively. The primary recommendation involves restricting management interface access to trusted internal IP addresses as specified in Palo Alto Networks best practices, which aligns with the principle of least privilege and network segmentation. Additional mitigations include implementing strict firewall rules limiting access to the management interface, deploying intrusion detection systems to monitor for suspicious file deletion activities, and establishing regular backup procedures for critical configuration files. Network administrators should also consider using VPN access controls or multi-factor authentication for management interface access, as outlined in ISO/IEC 27001 security controls. The vulnerability's impact on PAN-OS devices underscores the importance of maintaining updated security configurations and regularly reviewing access controls to prevent unauthorized system modifications that could compromise overall network security posture.