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Exploited vulnerabilities (CISA KEV)
CVEs with exploitation confirmed by CISA (Known Exploited Vulnerabilities), with required actions and deadlines.
CVE-2026-102489
Critical · 9.8
KEV High · 61 Public exploit CWE-384 Sep 30, 2026
Zammad GmbH Zammad Session Fixation Vulnerability
Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The bug is also present in version 7.0.0 to version 7.1.2, but not exploitable due to changes in the underlying framework.
CVE-2026-102490
High · 7.8
KEV High · 48 CWE-269 Sep 30, 2026
Zammad GmbH Zammad Improper Privilege Management Vulnerability
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.