High 7.1Published Sep 25, 2026

CVE-2026-56724Zammad: Incorrect implementation of permission checks in the knowledge base module

Updated under an hour ago (2026-10-19 05:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for zammad

Exploited in the last 30 days

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary An issue with permission checks in the knowledge base management area has been identified. Under certain conditions, data validation for linked items was not fully enforced. This could have allowed users with limited read permissions to interact with items outside their assigned access scope. Data access has been strengthened in the current version through additional validation routines. This issue is fixed in version 7.0.2.

CVSS: 7.1 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-639, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Sep 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

zammad zammad zammad:zammad (from the name)	before 7.0.2	CNA record

References

https://github.com/zammad/zammad/security/advisories/GHSA-pv3q-74g5-w7fvx-refsource-confirm
https://github.com/zammad/zammad/commit/13ccc136e527adcab705ca8a3b2fb9ffc0cecddcx-refsource-misc
https://github.com/zammad/zammad/releases/tag/7.0.2x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.