CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations
Customers in shared organizations can view internal ticket fields they should not see, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-34248?
CVE-2026-34248 is a low-severity vulnerability in Zammad Zammad, published on 8 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations (means they can see each other's tickets) could see fields which are not intended for customers - including fields not intended for them at all (e.g. priority, custom ticket attributes for internal purposes). This was the case when a customer opened a ticket from another user of the same shared organization. They are not able to modify these field. This vulnerability is fixed in 7.0.1.
Weakness: CWE-284
Which versions are affected by CVE-2026-34248?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2026-34248?
No fix has been published for CVE-2026-34248 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-34248 being exploited?
There is no known exploitation of CVE-2026-34248 in the wild and no public exploit code.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-prww-84vh-w978.