CVE-2026-76449: Cisco ISE SQL/HQL injection in APIs

CVE-2026-76449 · Severity: medium · CVSS 4.9 · Published 2026-09-16

Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) are identity management and network access control products used by enterprises to manage authentication and authorization. A flaw in API input validation allows authenticated administrators to inject malicious SQL/HQL queries into the underlying database, enabling unauthorized access to or modification of sensitive identity and network data. This could expose user credentials, security policies, and network access logs.

Technologies: Cisco Identity Services Engine, Cisco ISE Passive Identity Connector. Vendors: Cisco.

Quick answers

Is CVE-2026-76449 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-76449 being exploited in the wild.
How severe is CVE-2026-76449?
Medium severity, with a CVSS score of 4.9, published 16 September 2026.
Which products and versions are affected?
Cisco Identity Services Engine 3.1, 3.2, 3.3 (before patch 12), 3.4 (before patch 7), 3.5 (before patch 4); Cisco ISE Passive Identity Connector 3.1, 3.2, 3.3 (before patch 12), 3.4 (before patch 7).
Is there a fix for CVE-2026-76449?
A patch was published on 2026-09-16: Patches released: ISE 3.3 Patch 12, 3.4 Patch 7, 3.5 Patch 4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-76449 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-76449?
Check whether you run Cisco Identity Services Engine or Cisco ISE Passive Identity Connector at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is a SQL/HQL injection flaw (CWE-89, CWE-564) in multiple APIs within Cisco ISE and ISE-PIC. The root cause is insufficient validation of user-supplied input before database query construction. An authenticated attacker with valid administrative credentials can send a crafted API request to an affected device to execute arbitrary SQL or HQL queries against the underlying database. A successful exploit allows viewing or modifying unauthorized data. The vulnerability requires network access and valid admin credentials. Cisco has released patches: ISE 3.3 Patch 12, ISE 3.4 Patch 7, and ISE 3.5 Patch 4 and later address the issue. No workarounds are available.

Affected products

  • Cisco Identity Services Engine 3.1, 3.2, 3.3 (before patch 12), 3.4 (before patch 7), 3.5 (before patch 4)
  • Cisco ISE Passive Identity Connector 3.1, 3.2, 3.3 (before patch 12), 3.4 (before patch 7)

Timeline

  • 2026-09-16: disclosed
  • 2026-09-16: patched: Patches released: ISE 3.3 Patch 12, 3.4 Patch 7, 3.5 Patch 4

References

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