# CVE-2026-23810: Cross-BSSID GTK Re-encryption and Traffic Injection

> An authenticated attacker can inject traffic and perform machine-in-the-middle attacks across BSSID boundaries by exploiting packet processing logic in HPE Aruba Wireless OS.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Mar 2026
- **Updated:** 1 Apr 2026
- **Also known as:** GHSA-m4hr-5g26-hjj4

## What is CVE-2026-23810?

CVE-2026-23810 is a medium-severity vulnerability in Arubanetworks Arubaos, published on 4 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in the packet processing logic may allow an authenticated attacker to craft and transmit a malicious Wi-Fi frame that causes an Access Point (AP) to classify the frame as group-addressed traffic and re-encrypt it using the Group Temporal Key (GTK) associated with the victim's BSSID. Successful exploitation may enable GTK-independent traffic injection and, when combined with a port-stealing technique, allows an attacker to redirect intercepted traffic to facilitate machine-in-the-middle (MitM) attacks across BSSID boundaries.

Weakness: CWE-300 (Channel Accessible by Non-Endpoint)

## Which versions are affected by CVE-2026-23810?

It affects 1 product.


Products: Arubanetworks Arubaos.

## How do I fix CVE-2026-23810?

No fix has been published for CVE-2026-23810 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-23810 being exploited?

There is no known exploitation of CVE-2026-23810 in the wild and no public exploit code.

## Other vulnerabilities in Arubanetworks Arubaos

- [CVE-2024-42393](https://insights.sbomify.com/CVE-2024-42393/): Memory corruption in Hpe Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10 (critical 9.8)
- [CVE-2024-42394](https://insights.sbomify.com/CVE-2024-42394/): Memory corruption in HPE Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10 (critical 9.8)
- [CVE-2024-42395](https://insights.sbomify.com/CVE-2024-42395/): Memory corruption in HPE Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10 (critical 9.8)
- [CVE-2024-31466](https://insights.sbomify.com/CVE-2024-31466/): Unauthenticated Buffer Overflow Vulnerabilities in CLI Service Accessed by the PAPI Protocol (critical 9.8)
- [CVE-2024-31467](https://insights.sbomify.com/CVE-2024-31467/): Unauthenticated Buffer Overflow Vulnerabilities in CLI Service Accessed by the PAPI Protocol (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-23810 and fix it if it is affected.

What it is: CVE-2026-23810 is a medium-severity vulnerability in Arubanetworks Arubaos, published on 4 Mar 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-2026-23810 in the wild and no public exploit code.

Affected product: Arubanetworks Arubaos. 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-2026-23810/ (Markdown: https://insights.sbomify.com/CVE-2026-23810/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-23810
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23810
- OSV: https://osv.dev/vulnerability/CVE-2026-23810

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-23810/
Summaries are generated and may contain mistakes; the official description above is the record.