CVE-2026-76446
Cisco Identity Services Engine External Entity Injection Vulnerability
Description
A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device. This vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific files on the affected system that the underlying process has permission to access.
Weakness: CWE-611
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco ISE Passive Identity Connector | Identity / IAM / MFA | cna-assigner |
| Cisco | Cisco Identity Services Engine (ISE) Check your version | Identity / IAM / MFA | cna-assigner |
Vendor-reported products (2)
- Cisco · Cisco Identity Services Engine Software
- Cisco · Cisco ISE Passive Identity Connector
Vendor advisory
cisco-sa-ise-multiauth-bypass-sgD2HbL4
Cisco Identity Services Engine Authentication Bypass Vulnerabilities
Cisco’s rating: Medium (advisory CVSS 5.3) · Published Sep 16, 2026 · updated Sep 24, 2026 (revision 1.1)
Bug IDs: CSCwu73771 , CSCwu73786 , CSCwu73808 , CSCwu73832
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from