Deserialization of Untrusted Data in Single Content Sync - CVE-2026-118562
Published: October 30, 2026
Vulnerability identifier: #VU158563
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-118562
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data. A remote administrator can use a specially crafted import file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Single Content Sync
How to mitigate CVE-2026-118562
Install updates from vendor's website.
Single Content Sync - update to 1.4.19