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identity-services-engine

CVE-2026-20146 is a medium severity vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) versions 3.1.0 through 3.5.0. It allows an authenticated attacker with administrative privileges to perform path traversal attacks due to improper validation of user-supplied input. This can lead to reading or deletion of arbitrary files via crafted HTTP requests. No official patch or remediation details have been provided yet.

This vulnerability in Cisco Identity Services Engine Software arises from improper limitation of a pathname to a restricted directory, enabling path traversal attacks. Authenticated users with administrative privileges can exploit this flaw by sending crafted HTTP requests that bypass input validation, allowing them to read or delete arbitrary files on the affected system. The issue affects Cisco ISE versions 3.1.0, 3.2.0, 3.3.0, 3.4.0, and 3.5.0. There is currently no official remediation or patch available from Cisco.

Detailed information about CVE-2026-20146: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Cisco Cisco Identity Services Engin

CVE-2026-20146: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Cisco Cisco Identity Services Engine Software - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-20146: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Cisco Cisco Identity Services Engine Software

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