# CVE-2026-23599: Local Privilege Escalation Vulnerability in HPE Aruba Networking Clear Pass Policy Manager OnGuard for Linux

> A local attacker can exploit this vulnerability to execute arbitrary code with root privileges on HPE Aruba ClearPass OnGuard for Linux.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Feb 2026
- **Updated:** 18 Feb 2026
- **Also known as:** GHSA-7jfh-hm8h-m5rq

## What is CVE-2026-23599?

CVE-2026-23599 is a high-severity vulnerability in Hewlett Packard Enterprise (HPE) HPE Aruba Networking ClearPass Policy Manager, published on 17 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A local privilege-escalation vulnerability has been discovered in the HPE Aruba Networking ClearPass OnGuard Software for Linux. Successful exploitation of this vulnerability could allow a local attacker to achieve arbitrary code execution with root privileges.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-23599?


## How do I fix CVE-2026-23599?

No fix has been published for CVE-2026-23599 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-23599 being exploited?

There is no known exploitation of CVE-2026-23599 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-23599 and fix it if it is affected.

What it is: CVE-2026-23599 is a high-severity vulnerability in Hewlett Packard Enterprise (HPE) HPE Aruba Networking ClearPass Policy Manager, published on 17 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-23599 in the wild and no public exploit code.

Affected product: Hewlett Packard Enterprise (HPE) HPE Aruba Networking ClearPass Policy Manager. 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-2026-23599/ (Markdown: https://insights.sbomify.com/CVE-2026-23599/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-23599
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23599
- OSV: https://osv.dev/vulnerability/CVE-2026-23599

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-23599/
Summaries are generated and may contain mistakes; the official description above is the record.