CVE-2026-20148 Cisco Identity Services Engine Path Traversal Vulnerability

Medium 4.9 Published 15 Apr 2026 Updated 15 Apr 2026

An authenticated attacker with admin credentials can perform path traversal to read arbitrary files on Cisco ISE systems.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-20148?

CVE-2026-20148 is a medium-severity path traversal vulnerability in Cisco Identity Services Engine, published on 15 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system and read arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files on the affected system.

Weakness: CWE-22

Which versions are affected by CVE-2026-20148?

It affects 2 products.

Products include Cisco Identity Services Engine, Cisco Identity Services Engine Passive Identity Connector.

How do I fix CVE-2026-20148?

No fix has been published for CVE-2026-20148 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-20148 being exploited?

There is no known exploitation of CVE-2026-20148 in the wild and no public exploit code.

All Cisco Identity Services Engine vulnerabilities

Sources

Also known as GHSA-m2rm-r929-jjfm.