# CVE-2026-76460: Cisco Identity Services Engine Incorrect Use of Privileged APIs

> Unauthenticated remote attackers can bypass authentication on Cisco ISE API endpoints to gain unauthorized access to the management interface.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 16 Sep 2026 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Sep 2026
- **Updated:** 7 Oct 2026
- **Also known as:** GHSA-25wc-3w28-q6vw

## What is CVE-2026-76460?

CVE-2026-76460 is a critical authentication bypass vulnerability in Cisco Identity Services Engine, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.

This vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.

Weakness: CWE-648 (Incorrect Use of Privileged APIs)

## Which versions are affected by CVE-2026-76460?

It affects 2 products.


Products: Cisco Identity Services Engine, Cisco Identity Services Engine Passive Identity Connector.

## How do I fix CVE-2026-76460?

No fix has been published for CVE-2026-76460 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 19 Sep 2026.

## Is CVE-2026-76460 being exploited?

Yes. Attackers have exploited CVE-2026-76460 in the wild since at least 16 Sep 2026.

Public exploit code:

- CVE-2026-76460 (github_poc): https://github.com/S3v3n-JG/CVE-2026-76460
- Cisco Identity Services Engine - ise-kong API Gateway Authentication Bypass (nuclei): http/cves/2026/CVE-2026-76460.yaml

## Other vulnerabilities in Cisco Identity Services Engine

- [CVE-2025-20337](https://insights.sbomify.com/CVE-2025-20337/): Cisco Identity Services Engine Injection (critical 10.0, exploited in the wild)
- [CVE-2025-20281](https://insights.sbomify.com/CVE-2025-20281/): Cisco Identity Services Engine Injection (critical 10.0, exploited in the wild)
- [CVE-2026-20130](https://insights.sbomify.com/CVE-2026-20130/): Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities (critical 10.0)
- [CVE-2026-20192](https://insights.sbomify.com/CVE-2026-20192/): Cisco Identity Services Engine Hardening Release - Access Control Vulnerabilities (critical 10.0)
- [CVE-2025-20282](https://insights.sbomify.com/CVE-2025-20282/): Cisco ISE API Unauthenticated Remote Code Execution Vulnerability (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-76460 and fix it if it is affected.

What it is: CVE-2026-76460 is a critical authentication bypass vulnerability in Cisco Identity Services Engine, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2026-76460 in the wild since at least 16 Sep 2026.

Affected product: Cisco Identity Services Engine. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-76460/ (Markdown: https://insights.sbomify.com/CVE-2026-76460/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-76460
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-76460
- OSV: https://osv.dev/vulnerability/CVE-2026-76460

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-76460/
Summaries are generated and may contain mistakes; the official description above is the record.