Quick answers
- Is CVE-2026-34723 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-34723 being exploited in the wild.
- How severe is CVE-2026-34723?
- High severity, with a CVSS score of 7.5, published 8 April 2026.
- Which products and versions are affected?
- Zammad < 6.5.4, >= 7.0.0-alpha, < 7.0.1.
- Is there a fix for CVE-2026-34723?
- 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-2026-34723 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-34723?
- 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
An improper access control vulnerability exists in Zammad's 'getting_started_controller'. The 'getting started' endpoint remains accessible to unauthenticated remote attackers even after the initial system setup is finalized. By sending a specially crafted network request to this endpoint, an attacker can retrieve sensitive internal entity data without any prior authorization or user interaction. The issue is rooted in insufficient restriction of the setup-related resources. This vulnerability is resolved in Zammad versions 7.0.1 and 6.5.4.
Affected products
- Zammad Zammad < 6.5.4, >= 7.0.0-alpha, < 7.0.1
Timeline
- 2026-04-08: disclosed
- 2026-04-08: advisory
- 2026-04-08: patched