{"id":"UBUNTU-CVE-2026-104733","details":"User Impersonation in ProcessOnes XMMP Server ejabberd \u003c= 26.04 allows an attacker to impersonate arbitrary users via unvalidated authzid parameter in SASL-PLAIN mechanism.","modified":"2026-10-05T13:04:11.507310941Z","published":"2026-10-05T00:00:00Z","upstream":["CVE-2026-104733"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-104733"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-104733"},{"type":"REPORT","url":"https://www.nsideattacklogic.de/advisories/NSIDE-SA-2026-004/"},{"type":"REPORT","url":"https://github.com/processone/ejabberd/releases#release-26.07"}],"affected":[{"package":{"name":"ejabberd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ejabberd?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["15.03-2","15.10-3","16.01-1","16.01-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ejabberd","binary_version":"16.01-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104733.json"}},{"package":{"name":"ejabberd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ejabberd?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["17.07-1","17.08-3","17.11-1","18.01-1","18.01-2"],"ecosystem_specific":{"binaries":[{"binary_version":"18.01-2","binary_name":"ejabberd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104733.json"}},{"package":{"name":"ejabberd","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ejabberd?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["19.08-2","19.09.1-1","20.01-1"],"ecosystem_specific":{"binaries":[{"binary_version":"20.01-1","binary_name":"ejabberd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104733.json"}},{"package":{"name":"ejabberd","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ejabberd?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.01-2","21.07-1","21.12-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ejabberd","binary_version":"21.12-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104733.json"}},{"package":{"name":"ejabberd","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ejabberd?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["23.01-1","23.10-1"],"ecosystem_specific":{"binaries":[{"binary_version":"23.10-1","binary_name":"ejabberd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104733.json"}},{"package":{"name":"ejabberd","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ejabberd?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["24.12-3","24.12-4"],"ecosystem_specific":{"binaries":[{"binary_name":"ejabberd","binary_version":"24.12-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-104733.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:H/SI:H/SA:H/E:P"},{"type":"Ubuntu","score":"medium"}]}