CVE-2026-102490 Zammad GmbH Zammad Improper Privilege Management
Local attackers with write access to Zammad service files can escalate to root privileges due to insecure service restart mechanisms in DEB and RPM packages.
- Exploited in the wild
- Since 2 Oct 2026
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102490?
CVE-2026-102490 is a high-severity vulnerability in Zammad Zammad, published on 30 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Zammad packages built with packager.io (DEB and RPM) could have allowed a local attacker who already had file system write privileges as the unprivileged zammad service account to escalate to full root privileges on the host. Service processes began running as root and executed files that were owned and writable by the zammad account before dropping their identity to that account. An attacker holding that foothold could have escalated within seconds, because the affected services were restarted automatically whenever they stopped; no administrator interaction was required. Only installations from the DEB and RPM packages were affected — installations from source or the official container images were not. All released packaged versions were affected.
Weakness: CWE-269
Which versions are affected by CVE-2026-102490?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2026-102490?
No fix has been published for CVE-2026-102490 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 5 Oct 2026.
Is CVE-2026-102490 being exploited?
Yes. Attackers have exploited CVE-2026-102490 in the wild since at least 2 Oct 2026.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-hgff-g8g3-4xr8, GHSA-p97w-927q-8vxq.