CVE-2026-112343

High

Description

Syncplify Server! before 8.8.0 contains an access control bypass vulnerability that allows authenticated SFTP users to evade per-path permission overrides by exploiting case-insensitive filesystem path resolution and 8.3 short names. Attackers can address a protected directory using alternate capitalization or its 8.3 short name to perform file uploads and downloads that the configured override is intended to deny, resulting in unauthorized file access.

SeverityHigh

CVSS8.1

Exploit probability—

ProductSyncplify Server!

PublishedOct 26, 2026

First seenOct 26, 2026

Weakness typeCWE-41CWE-41

How to fix

Update

Syncplify, Inc. Syncplify Server!8.8.0 or later

Patches

blog.syncplify.com/p/syncplify-server-v880-released

Affected products

Product	Affected versions	Fixed in
Syncplify, Inc. Syncplify Server!	v < 8.8.0	8.8.0

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