No. CVE-2026-102490
A Zammad server user can become the all powerful root user
Being used now
Yes. Attackers are using this right now.
Teams that run their own Zammad help desk. Used together with another Zammad flaw.
What to do
Update Zammad to the latest version.
Confirmed in attacksOct 2, 2026
ProductZammad GmbH Zammad
Attack likelihood, next 30 days11%
Attack likelihood is EPSS, a daily estimate from FIRST.org of how likely this bug is to be used in attacks in the next 30 days.
The official 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.
For your tech helper or AI assistant
A read-only checklist. Paste it into Claude, ChatGPT or a coding agent; it only looks and changes nothing.
Read-only check, change nothing, send nothing anywhere.
Is Zammad GmbH Zammad (CVE-2026-102490) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2026-102490. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.