October 2, 2026 · Applied Cybernetics Group
CVE-2026-102490 — Zammad GmbH Zammad
Zammad GmbH Zammad Improper Privilege Management Vulnerability
- Added to KEV
2026-10-02- Federal due date
2026-10-05- Vendor
- Zammad GmbH
- Product
- Zammad
- EPSS
- 48.3th percentile (score 0.006, as of
2026-10-04) - NVD CVSS v3.1
- 9.8 (CRITICAL)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2026-102490
CISA short description
Zammad GmbH Zammad contains an improper privilege management vulnerability that can allow the local zammad user to escalate privileges to root. This vulnerability can be chained with CVE-2026-102489.
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
NVD description
All versions of Zammad including the latest alpha enable the local zammad user to escalate privileges to root.