Vulnerability in Zammad
CVE-2026-34248
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.
EPSS: 0.002 (9.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Zammad — versions 7.0.0, >= 7.0.0, < 7.0.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-34248?
- CVE-2026-34248 is a medium-severity vulnerability in Zammad, classified under Improper Access Control. CVSS score: 5.7/10. Published 2026-04-08.
- How severe is CVE-2026-34248?
- Medium severity. CVSS v3 base score is 5.7 out of 10.