# CVE-2026-69558: Microsoft Partner Center Information Disclosure Vulnerability

> An unauthorized attacker can bypass authorization to disclose information over the network in Microsoft Partner Center.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Aug 2026
- **Updated:** 28 Oct 2026
- **Also known as:** GHSA-7fcf-m943-h7cx

## What is CVE-2026-69558?

CVE-2026-69558 is a high-severity authentication bypass vulnerability in Microsoft Partner Center, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker to disclose information over a network.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-69558?

It affects 1 product.


Products: Microsoft Partner Center.

## How do I fix CVE-2026-69558?

No fix has been published for CVE-2026-69558 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-69558 being exploited?

There is no known exploitation of CVE-2026-69558 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Partner Center

- [CVE-2024-49035](https://insights.sbomify.com/CVE-2024-49035/): Microsoft Partner Center Improper Access Control (high 8.7, exploited in the wild)
- [CVE-2026-96207](https://insights.sbomify.com/CVE-2026-96207/): Microsoft Partner Center Elevation of Privilege Vulnerability (critical 10.0)
- [CVE-2025-65041](https://insights.sbomify.com/CVE-2025-65041/): Microsoft Partner Center Elevation of Privilege Vulnerability (critical 10.0)
- [CVE-2026-24303](https://insights.sbomify.com/CVE-2026-24303/): Microsoft Partner Center Elevation of Privilege Vulnerability (critical 9.6)
- [CVE-2025-29814](https://insights.sbomify.com/CVE-2025-29814/): Microsoft Partner Center Elevation of Privilege Vulnerability (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-69558 and fix it if it is affected.

What it is: CVE-2026-69558 is a high-severity authentication bypass vulnerability in Microsoft Partner Center, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-69558 in the wild and no public exploit code.

Affected product: Microsoft Partner Center. 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-2026-69558/ (Markdown: https://insights.sbomify.com/CVE-2026-69558/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-69558
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-69558
- OSV: https://osv.dev/vulnerability/CVE-2026-69558

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-69558/
Summaries are generated and may contain mistakes; the official description above is the record.