CVE entry · CVE-2026-102490
CVE-2026-102490: Zammad GmbH Zammad Improper Privilege Management Vulnerability
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.
- Actively exploited: added to CISA’s KEV catalog on October 2, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: October 5, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Zammad GmbH Zammad, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (zammad.com)
- Vendor advisory or reference cited by CISA (community.zammad.org)
- NVD entry (NIST)
- CISA KEV catalog