CVE-2026-56729 Zammad: Titles of knowledge base answers will be shown across all categories via the global search
Attackers can view sensitive knowledge base answer titles from restricted categories via global search, potentially leaking confidential information.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56729?
CVE-2026-56729 is a low-severity vulnerability in zammad, published on 25 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, when multiple KB categories have different editor roles assigned, a user with knowledge_base.editor in one category can see answer titles and updated_at timestamps from categories they do not have editor access to , via the global quick search. Category names are not leaked, and opening the answer returns "Page not found," but the title alone may disclose sensitive information. This vulnerability is fixed in 7.0.2.
Which versions are affected by CVE-2026-56729?
How do I fix CVE-2026-56729?
No fix has been published for CVE-2026-56729 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56729 being exploited?
There is no known exploitation of CVE-2026-56729 in the wild and no public exploit code.
Sources
Also known as GHSA-4m54-p3mr-22g2.