CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability
Description
A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct SQL injection attacks against the monitoring database. This vulnerability is due to insufficient validation of specific parameters that are then concatenated into an SQL statement. An attacker could exploit this vulnerability by sending a crafted request that contains SQL statements in one of the affected parameters. A successful exploit could allow the attacker to read information from the monitoring database. To exploit this vulnerability, the attacker must have valid administrative credentials.
Weakness: CWE-89
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 Identity Services Engine Vulnerabilities
Cisco’s rating: Critical (advisory CVSS 10.0) · Published Sep 16, 2026
Bug IDs: CSCwu20156 , CSCwu26054 , CSCwu26055 , CSCwu27428 , CSCwu39998 , CSCwu43502
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from