CVE-2026-110874: Insecure Deserialization (CVSS 6.6)

Description

Dolibarr before 23.0.4 contains a PHP object injection vulnerability in jsonOrUnserialize() in functions.lib.php, which calls unserialize() without class restrictions when json_decode() fails. Attackers able to write stored extrafields, export configurations or blocked log entries can plant serialized objects that trigger gadget chains for code execution or file manipulation.

Is your site exposed to CVE-2026-110874?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.6

MEDIUM

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

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

References

Other References

https://github.com/Dolibarr/dolibarr https://github.com/Dolibarr/dolibarr/commit/17658fcaefdaabe13685e566e5f12d5fbd4f4a5c https://github.com/Dolibarr/dolibarr/pull/38530 https://www.vulncheck.com/advisories/dolibarr-before-23.0.4-php-object-injection-via-jsonorunserialize

Frequently Asked Questions

What is CVE-2026-110874? +

Dolibarr before 23.0.4 contains a PHP object injection vulnerability in jsonOrUnserialize() in functions.lib.php, which calls unserialize() without class restrictions when json_decode() fails. Attackers able to write stored extrafields, export configurations or blocked log entries can plant serialized objects that trigger gadget chains for code execution or file manipulation. It has a CVSS v3.1 base score of 6.6 (MEDIUM).

How severe is CVE-2026-110874? +

CVE-2026-110874 has a CVSS v3.1 score of 6.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-110874? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-10748

An authenticated user with the nx-licensing-create privilege can upload a specially crafted license file to execute arbitrary operating system commands …

CVE-2026-101169

In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically …

CVE-2026-44126

SEPPmail Secure Email Gateway before version 15.0.4 insecurely deserializes untrusted data, which can be reached from the new GINA UI …

CVE-2026-11857

Quanos SCHEMA ST4 on-premises contains a local privilege escalation vulnerability in the Client Update Service due to insecure deserialization in …

CVE-2026-47161

RELATE is a web-based courseware package. Prior to commit d66ba5659b459bf1ba56b7109b5f9ecf197cbefb, RELATE LMS configures its Celery workers to accept and deserialize …

CVE-2025-1077

A security vulnerability has been identified in the IBL Software Engineering Visual Weather and derived products (NAMIS, Aero Weather, Satellite …

CVE-2026-110874