CVE-2026-76427: Cisco ISE XML External Entity Injection Vulnerability
A vulnerability in the offline profiler feed service of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files that are stored on an affected device. This vulnerability is due to the parsing of attacker-controlled feed metadata with an XML parser that does not disable external entity resolution. An attacker could exploit this vulnerability by uploading a crafted offline feed package through the administrative interface. A successful exploit could allow the attacker to read arbitrary files from the file system and issue requests to internal systems from the affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must be able to reach the Cisco ISE administrative interface remotely and possess valid administrative credentials. Unauthenticated users cannot exploit it based on the available information.
What access could exploitation provide?
A successful exploit can allow the attacker to read arbitrary files stored on the affected Cisco ISE device. It can also allow requests to internal systems to be issued from that device.
What attacker action triggers the vulnerable parsing?
The attacker uploads a crafted offline profiler feed package through the administrative interface. The issue occurs when attacker-controlled feed metadata is parsed with external entity resolution enabled.