Information disclosure in Zammad
CVE-2026-56729
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, when multiple KB categories have different editor roles assigned, a user with knowledge_base.editor in one category can see answer titles and updated_at timestamps from categories they do not have editor access to , via the global quick search. Category names are not leaked, and opening the answer returns "Page not found," but the title alone may disclose sensitive information. This vulnerability is fixed in 7.0.2.
Vulnerability class: Information Disclosure
Published · last modified .
EPSS exploit prediction
EPSS: 0.004 (31.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Zammad — versions < 7.0.2
Weakness classification (CWE)
References
- https://github.com/zammad/zammad/security/advisories/GHSA-4m54-p3mr-22g2
- https://github.com/zammad/zammad/commit/5076aa1e3081146f826ffaef686c89935fdb4393
- https://github.com/zammad/zammad/commit/7b6c0adec006e036c9e605c4141a091a6e08aadf
- https://github.com/zammad/zammad/commit/de5dc4195829e0e1a64307d60c9e06e0e781ab37