---
title: "CVE-2026-112343: Syncplify Server! - Access Control Bypass"
description: "Syncplify Server! before 8.8.0 contains an access control bypass caused by case-insensitive filesystem path resolution and 8.3 short names, letting authenticated SFTP users perform unauthorized file uploads and downloads, exploit requires authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-112343/
---

# CVE-2026-112343 Syncplify Server! - Access Control Bypass

Syncplify Server! before 8.8.0 contains an access control bypass caused by case-insensitive filesystem path resolution and 8.3 short names, letting authenticated SFTP users perform unauthorized file uploads and downloads, exploit requires authentication.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-112343)

## Details

Type

Access Control Bypass

Impact

Broken Access Control

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-41](https://cwe.mitre.org/data/definitions/41.html)

## Vendor fix

Upgrade to version 8.8.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-112343](https://nvd.nist.gov/vuln/detail/CVE-2026-112343)
- [https://blog.syncplify.com/p/syncplify-server-v880-released](https://blog.syncplify.com/p/syncplify-server-v880-released)
- [https://www.vulncheck.com/advisories/syncplify-server-permission-override-bypass-via-path-casing](https://www.vulncheck.com/advisories/syncplify-server-permission-override-bypass-via-path-casing)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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