{"id":"CVE-2022-26562","aliases":["DLA-3354-1","EUVD-2022-31118","GHSA-24g4-fh3x-4f5h","UBUNTU-CVE-2022-26562","USN-6876-1"],"status":"published","title":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano-Core v11.0.2.51 contains an issue which...","description":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core \u003c= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa \u003e= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02154,"percentile":0.82314,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2022-04-01T00:00:00Z","modified":"2026-06-17T04:35:22Z","fixes":[{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"kopanocore","fixed_in":["8.5.5-0ubuntu1+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"kopanocore","fixed_in":["8.7.0-7ubuntu1.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"kopanocore","fixed_in":["8.7.0-7.1ubuntu10.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:10","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.7.0-3+deb10u1"}]}],"versions":["8.7.0-3"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.5-0ubuntu1+esm1"}]}],"versions":["8.1.0-3ubuntu5","8.1.0-3ubuntu6","8.3.4-4ubuntu4","8.5.2-1ubuntu1","8.5.5-0ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.7.0-7ubuntu1.1"}]}],"versions":["8.7.0-3build2","8.7.0-5ubuntu5","8.7.0-5ubuntu6","8.7.0-6ubuntu1","8.7.0-6ubuntu2","8.7.0-6ubuntu3","8.7.0-7ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.7.0-7.1ubuntu10.1"}]}],"versions":["8.7.0-7.1ubuntu4","8.7.0-7.1ubuntu6","8.7.0-7.1ubuntu7","8.7.0-7.1ubuntu8","8.7.0-7.1ubuntu10"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.5-0ubuntu1+esm1"}]}],"versions":["8.1.0-3ubuntu5","8.1.0-3ubuntu6","8.3.4-4ubuntu4","8.5.2-1ubuntu1","8.5.5-0ubuntu1"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.7.0-7ubuntu1.1"}]}],"versions":["8.7.0-3build2","8.7.0-5ubuntu5","8.7.0-5ubuntu6","8.7.0-6ubuntu1","8.7.0-6ubuntu2","8.7.0-6ubuntu3","8.7.0-7ubuntu1"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"kopanocore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.7.0-7.1ubuntu10.1"}]}],"versions":["8.7.0-7.1ubuntu4","8.7.0-7.1ubuntu6","8.7.0-7.1ubuntu7","8.7.0-7.1ubuntu8","8.7.0-7.1ubuntu10"],"bundled":2}],"products":[{"vendor":"kopano","product":"groupware_core"}],"references":[{"url":"https://kopano.com/","tags":["x_transferred","Vendor Advisory","report"]},{"url":"https://stash.kopano.io/projects/KC/repos/kopanocore/browse/provider/libserver/ECKrbAuth.cpp#137","tags":["x_transferred","Exploit","Vendor Advisory","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00006.html","tags":["mailing-list","x_transferred"]},{"url":"https://jira.kopano.io/browse/KC-2021","tags":["x_transferred"]},{"url":"https://github.com/Kopano-dev/kopano-core/blob/master/provider/libserver/ECKrbAuth.cpp#L137","tags":["x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2192126","tags":["x_transferred"]},{"url":"https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-342b96903b","tags":["x_transferred"]},{"url":"https://src.fedoraproject.org/rpms/zarafa/c/a5a8366ccf07f248fae6edffb5123cfda579bfdb?branch=epel7","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26562"},{"url":"https://github.com/advisories/GHSA-24g4-fh3x-4f5h"},{"url":"https://ubuntu.com/security/CVE-2022-26562","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-26562","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6876-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-19907","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-26562","description":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core \u003c= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa \u003e= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).","status":"published","published":"2022-04-01T00:00:00Z","modified":"2024-08-03T05:03:32.956Z","updated_at":"2026-11-02T14:34:25.954329Z"}],"euvd":[{"id":"EUVD-2022-31118","description":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core \u003c= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa \u003e= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).","status":"published","published":"2022-04-01T00:00:00Z","modified":"2024-08-03T05:03:32Z","updated_at":"2026-11-03T03:25:44.694159Z"}],"ghsa":[{"id":"GHSA-24g4-fh3x-4f5h","title":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano-Core v11.0.2.51 contains an issue which...","description":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano-Core v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired.","status":"published","published":"2022-04-02T00:00:13Z","modified":"2023-05-20T05:00:37Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:54:35.559556Z"}],"nvd":[{"id":"CVE-2022-26562","description":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core \u003c= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa \u003e= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).","status":"published","published":"2022-04-01T20:15:08.227Z","modified":"2026-06-17T04:35:22.783Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:14.706146Z"}],"osv":[{"id":"UBUNTU-CVE-2022-26562","description":"An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core \u003c= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa \u003e= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).","status":"published","published":"2022-04-01T20:15:00Z","modified":"2026-04-22T13:20:23.17269Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:53:53.13624Z"},{"id":"DLA-3354-1","title":"kopanocore - security update","status":"published","published":"2023-03-06T00:00:00Z","modified":"2026-03-09T01:19:53.352906Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"USN-6876-1","title":"kopanocore vulnerabilities","description":"It was discovered that Kopano Core allowed out-of-bounds access. An\nattacker could use this issue to expose private information. This issue\nonly affected Ubuntu 18.04 LTS. (CVE-2019-19907)\n\nIt was discovered that Kopano Core allowed possible authentication\nwith expired passwords. An attacker could use this issue to bypass\nauthentication. (CVE-2022-26562)\n","status":"published","published":"2024-07-04T16:25:18Z","modified":"2026-04-22T10:50:15.58163Z","updated_at":"2026-11-02T16:58:17.914523Z"}]}}