Quick answers
- Is CVE-2026-34837 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-34837 being exploited in the wild.
- How severe is CVE-2026-34837?
- Medium severity, with a CVSS score of 4.3, published 8 April 2026.
- Which products and versions are affected?
- Zammad >= 7.0.0, < 7.0.1.
- Is there a fix for CVE-2026-34837?
- A patch was published on 2026-04-08. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-34837 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-34837?
- Check whether you run Zammad at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A missing authorization check (CWE-862) exists in the Zammad AI assistance controller, specifically the REST endpoint 'POST /api/v1/ai_assistance/text_tools/:id'. The application fails to verify if the current user has permission to access context data (such as group or organization details) supplied in the AI prompt request. An attacker with 'ticket.agent' permissions can exploit this to include and view data they are not authorized to access. The vulnerability is present in version 7.0.0 and was addressed in version 7.0.1.
Affected products
- Zammad Zammad >= 7.0.0, < 7.0.1
Timeline
- 2026-04-08: disclosed
- 2026-04-08: advisory
- 2026-04-08: patched