Low severity · published Sep 25, 2026
CVE-2026-56729
Zammad: Titles of knowledge base answers will be shown across all categories via the global search
2.1
CVSS
0.4%
EPSS
No
On KEV
Description
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZA
zammad · zammad
< 7.0.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56729
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56729
github.com
https://github.com/zammad/zammad/commit/5076aa1e3081146f826ffaef686c89935fdb4393
github.com
https://github.com/zammad/zammad/commit/7b6c0adec006e036c9e605c4141a091a6e08aadf
github.com
https://github.com/zammad/zammad/commit/de5dc4195829e0e1a64307d60c9e06e0e781ab37
github.com
https://github.com/zammad/zammad/security/advisories/GHSA-4m54-p3mr-22g2
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