A high-severity arbitrary file read vulnerability (CVE-2026-20191) in Cisco Catalyst Center allows unauthenticated remote attackers to read files from a restricted container by sending a crafted HTTP request, due to insufficient input validation. Cisco has released software updates to address this vulnerability, and there are no available workarounds.
A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catc-file-read-wLH2vf8X <br/>Security Impact Rating: High <br/>CVE: CVE-2026-20191