Auth bypass in Zammad
CVE-2026-34782
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the REST endpoint POST /api/v1/ai_assistance/text_tools/:id was not checking if a user is privileged to use the text tool, resulting in being able to use it in all situations. This vulnerability is fixed in 7.0.1 and 6.5.4.
Vulnerability class: Broken Access Control
EPSS: 0.002 (6.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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-2026-34782?
- CVE-2026-34782 is a medium-severity vulnerability in Zammad, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-04-08.
- How severe is CVE-2026-34782?
- Medium severity. CVSS v3 base score is 4.3 out of 10.