Cisco Identity Services Engine REST APIs sql injection

Summaryinfo

A vulnerability was found in Cisco Identity Services Engine and ISE Passive Identity Connector. It has been rated as problematic. Affected by this issue is some unknown functionality of the component REST APIs. This manipulation causes sql injection. This vulnerability is handled as CVE-2026-76428. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco Identity Services Engine and ISE Passive Identity Connector (version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown function of the component REST APIs. The manipulation with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the REST APIs of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct SQL injection attacks against the session database. This vulnerability is due to certain parameters being concatenated directly into SQL clauses without parameterization. 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 session database. To exploit this vulnerability, the attacker must have valid administrative credentials.

It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is known as CVE-2026-76428 since 08/19/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/16/2026). The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Policy Management Software

Vendor

• Cisco

Name

• Identity Services Engine
• ISE Passive Identity Connector

License

• commercial

Website

• Vendor: https://www.cisco.com/

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