CVE-2026-20286 Cisco Identity Services Engine Authorization Bypass Vulnerability
Authenticated administrators can bypass permission checks to modify file descriptions in Cisco ISE via crafted HTTP requests.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20286?
CVE-2026-20286 is a medium-severity missing authorization vulnerability in Cisco Identity Services Engine Software, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the web-based management interface of Cisco Identify Services Engine (ISE) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device. This vulnerability is due to the lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on a specific page. To exploit this vulnerability, an attacker would need valid Administrator credentials.
Weakness: CWE-285
Which versions are affected by CVE-2026-20286?
How do I fix CVE-2026-20286?
No fix has been published for CVE-2026-20286 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-20286 being exploited?
There is no known exploitation of CVE-2026-20286 in the wild and no public exploit code.
Sources
Also known as GHSA-mphr-p8xr-8527.