Vulnerability in Syncplify, Inc. Syncplify Server!
CVE-2026-112343
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- blog.syncplify.com/p/syncplify-server-v880-released (release-notes, patch)
- www.vulncheck.com/advisories/syncplify-server-permission-override-bypass-via-pa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112343?
- CVE-2026-112343 is a high-severity vulnerability in Syncplify, Inc. Syncplify Server!, classified under CWE-41. CVSS score: 8.1/10. Published 2026-10-26.
- How severe is CVE-2026-112343?
- High severity. CVSS v3 base score is 8.1 out of 10.