Zammad local privilege escalation flaw CVE-2026-102490 added to CISA exploited list
Zammad packages built with packager.io, in DEB and RPM form, launched service processes as root and executed files writable by the unprivileged zammad account. A local attacker with write access to that service account could plant content that root would run on the next service restart. NVD rates the flaw 7.8 under CVSS 3.1, and CISA added it to its Known Exploited Vulnerabilities catalog on 2 October 2026. The issue did not affect containerized deployments, which do not follow the same root-launch-then-drop pattern. Administrators are advised to apply the fixed build named in the vendor advisory and audit start-up paths.
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