Vulnerability · Published Apr 8, 2026 · Assigned by GitHub_M

CVE-2026-34248Zammad has an information disclosure in ticket detail view of customers in shared organizations

Low 2.1

In plain English

A low-severity improper access control in zammad from zammad. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 4.0)2.1Low

Exploit odds (30 days)0.2%top 90.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
zammad	zammad	>= 7.0.0, < 7.0.1

Weakness: CWE-284 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/zammad/zammad/security/advisories/GHSA-prww-84vh-w978 x_refsource_CONFIRM