CVE-2026-34723 Zammad has incorrect access control in getting_started_controller
Unauthenticated attackers can access sensitive internal entity data via the getting started endpoint in Zammad helpdesk systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34723?
CVE-2026-34723 is a high-severity missing authorization vulnerability in Zammad Zammad, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, unauthenticated remote attackers were able to access the getting started endpoint to get access to sensitive internal entity data, even after the system setup was completed. This vulnerability is fixed in 7.0.1 and 6.5.4.
Weakness: CWE-284
Which versions are affected by CVE-2026-34723?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2026-34723?
No fix has been published for CVE-2026-34723 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-34723 being exploited?
There is no known exploitation of CVE-2026-34723 in the wild and no public exploit code.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-hcm9-ch62-5727.