# CVE-2026-26139: Microsoft Purview Elevation of Privilege Vulnerability

> An unauthorized attacker can exploit SSRF in Microsoft Purview to elevate privileges over the network.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:P/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:** 19 Mar 2026
- **Updated:** 19 Jun 2026
- **Also known as:** GHSA-2cx9-68hw-c382

## What is CVE-2026-26139?

CVE-2026-26139 is a high-severity server-side request forgery vulnerability in Microsoft Purview, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-26139?

It affects 1 product.


Products: Microsoft Purview.

## How do I fix CVE-2026-26139?

No fix has been published for CVE-2026-26139 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26139 being exploited?

There is no known exploitation of CVE-2026-26139 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Purview

- [CVE-2025-21385](https://insights.sbomify.com/CVE-2025-21385/): Microsoft Purview Information Disclosure Vulnerability (high 8.8)
- [CVE-2025-53762](https://insights.sbomify.com/CVE-2025-53762/): Microsoft Purview Elevation of Privilege Vulnerability (high 8.7)
- [CVE-2026-26138](https://insights.sbomify.com/CVE-2026-26138/): Microsoft Purview Elevation of Privilege Vulnerability (high 8.6)
- [CVE-2025-64676](https://insights.sbomify.com/CVE-2025-64676/): Microsoft Purview eDiscovery Remote Code Execution Vulnerability (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26139 and fix it if it is affected.

What it is: CVE-2026-26139 is a high-severity server-side request forgery vulnerability in Microsoft Purview, published on 19 Mar 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-2026-26139 in the wild and no public exploit code.

Affected product: Microsoft Purview. 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-2026-26139/ (Markdown: https://insights.sbomify.com/CVE-2026-26139/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26139
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26139
- OSV: https://osv.dev/vulnerability/CVE-2026-26139

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-26139/
Summaries are generated and may contain mistakes; the official description above is the record.