CVE-2026-34372 Sulu checks fix permissions for subentities endpoints

What is CVE-2026-34372?

CVE-2026-34372 is a medium-severity missing authorization vulnerability in sulu, published on 31 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Sulu is an open-source PHP content management system based on the Symfony framework. From versions 1.0.0 to before 2.6.22, and 3.0.0 to before 3.0.5, a user which has permission for the Sulu Admin via at least one role could have access to the sub-entities of contacts via the admin API without even have permission for contacts. This issue has been patched in versions 2.6.22 and 3.0.5.

Weakness: CWE-288

Which versions are affected by CVE-2026-34372?

4 open source packages ship an affected version, including sulu/sulu. It affects 1 product.

Products include Sulu Sulu.

How do I fix CVE-2026-34372?

Upgrade sulu/sulu to a fixed version for your release line: 2.6.22 or 3.0.5.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-34372 being exploited?

There is no known exploitation of CVE-2026-34372 in the wild and no public exploit code.

Other vulnerabilities in sulu

• CVE-2021-43836 PHP file inclusion in the Sulu admin panel High 8.5
• CVE-2021-32737 XSS Injection in Media Collection Title was possible High 8.4
• CVE-2021-43835 Privilege escalation in the Sulu Admin panel High 7.2
• CVE-2024-27915 Sulu grants access to pages regardless of role permissions Medium 6.8
• CVE-2021-41169 Improper Neutralization HTML tags in sulu/sulu Medium 6.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6h7h-m7p5-hjqp.