# CVE-2026-105713: Microsoft Office SharePoint Spoofing Vulnerability

> An authorized attacker can perform spoofing via server-side request forgery in Microsoft SharePoint Server over an adjacent network.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C`)
- **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:** 13 Oct 2026
- **Updated:** 29 Oct 2026
- **Also known as:** GHSA-w2r8-6259-qr8m

## What is CVE-2026-105713?

CVE-2026-105713 is a medium-severity server-side request forgery vulnerability in Microsoft Sharepoint Server, published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over an adjacent network.

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

## Which versions are affected by CVE-2026-105713?

It affects 1 product.


Products: Microsoft Sharepoint Server.

## How do I fix CVE-2026-105713?

No fix has been published for CVE-2026-105713 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-105713 being exploited?

There is no known exploitation of CVE-2026-105713 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Sharepoint Server

- [CVE-2026-50522](https://insights.sbomify.com/CVE-2026-50522/): Microsoft SharePoint Deserialization of Untrusted Data Vulnerability (critical 9.8, exploited in the wild)
- [CVE-2026-58644](https://insights.sbomify.com/CVE-2026-58644/): Microsoft SharePoint Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2026-20963](https://insights.sbomify.com/CVE-2026-20963/): Microsoft SharePoint Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2025-53770](https://insights.sbomify.com/CVE-2025-53770/): Microsoft SharePoint Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2023-29357](https://insights.sbomify.com/CVE-2023-29357/): Microsoft SharePoint Server Privilege Escalation (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105713 and fix it if it is affected.

What it is: CVE-2026-105713 is a medium-severity server-side request forgery vulnerability in Microsoft Sharepoint Server, published on 13 Oct 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-2026-105713 in the wild and no public exploit code.

Affected product: Microsoft Sharepoint Server. 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-2026-105713/ (Markdown: https://insights.sbomify.com/CVE-2026-105713/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105713
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105713
- OSV: https://osv.dev/vulnerability/CVE-2026-105713

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105713/
Summaries are generated and may contain mistakes; the official description above is the record.