{"id":"CVE-2026-8078","summary":"Fix stored XSS in global settings change log","details":"Stored cross-site scripting in the global settings change log in Checkmk \u003c2.5.0p5, \u003c2.4.0p31, \u003c2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript in changelog messages that executes in other users' browsers when they view the Activate Changes page or Audit log.","modified":"2026-10-28T02:30:58.049777380Z","published":"2026-06-08T12:06:36.666Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8078.json","unresolved_ranges":[{"extracted_events":[{"range":[{"introduced":"2.2.0"},{"last_affected":"2.2.0"}],"source":"AFFECTED_FIELD","strategy":"StandaloneSingleVersion"}]},{"extracted_events":[{"range":[{"introduced":"2.5.0"},{"fixed":"2.5.0p5"},{"introduced":"2.4.0"},{"fixed":"2.4.0p31"},{"introduced":"2.3.0"},{"fixed":"2.3.0p48"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}],"cna_assigner":"Checkmk","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://checkmk.com/werk/17992"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8078.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8078"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/checkmk/checkmk","events":[{"introduced":"d6049cd2d82eba3842b30c305912b9e946842463"},{"last_affected":"4488bab2392314ec74c09ecde1f09187dcedf2b3"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"2.2.0-NA"},{"last_affected":"2.2.0-NA"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:-:*:*:*:*:*:*"},{"range":[{"introduced":"2.2.0-b1"},{"last_affected":"2.2.0-b1"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b1:*:*:*:*:*:*"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:i1:*:*:*:*:*:*","range":[{"introduced":"2.2.0-i1"},{"last_affected":"2.2.0-i1"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p1:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p1"},{"last_affected":"2.2.0-p1"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b2:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b2"},{"last_affected":"2.2.0-b2"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p2:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p2"},{"last_affected":"2.2.0-p2"}]},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b3:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b3"},{"last_affected":"2.2.0-b3"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p3:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p3"},{"last_affected":"2.2.0-p3"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b4:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b4"},{"last_affected":"2.2.0-b4"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p4:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p4"},{"last_affected":"2.2.0-p4"}],"source":"CPE_STRING"},{"range":[{"introduced":"2.2.0-b5"},{"last_affected":"2.2.0-b5"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b5:*:*:*:*:*:*"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p5:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p5"},{"last_affected":"2.2.0-p5"}],"source":"CPE_STRING"},{"range":[{"introduced":"2.2.0-b6"},{"last_affected":"2.2.0-b6"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b6:*:*:*:*:*:*"},{"range":[{"introduced":"2.2.0-p6"},{"last_affected":"2.2.0-p6"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p6:*:*:*:*:*:*"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b7:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b7"},{"last_affected":"2.2.0-b7"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p7:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p7"},{"last_affected":"2.2.0-p7"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b8:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b8"},{"last_affected":"2.2.0-b8"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p8:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p8"},{"last_affected":"2.2.0-p8"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p10:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p10"},{"last_affected":"2.2.0-p10"}]},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p11:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p11"},{"last_affected":"2.2.0-p11"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p12:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p12"},{"last_affected":"2.2.0-p12"}]},{"range":[{"introduced":"2.2.0-p13"},{"last_affected":"2.2.0-p13"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p13:*:*:*:*:*:*"},{"range":[{"introduced":"2.2.0-p14"},{"last_affected":"2.2.0-p14"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p14:*:*:*:*:*:*"},{"range":[{"introduced":"2.2.0-p15"},{"last_affected":"2.2.0-p15"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p15:*:*:*:*:*:*"},{"range":[{"introduced":"2.2.0-p16"},{"last_affected":"2.2.0-p16"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p16:*:*:*:*:*:*"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p17:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p17"},{"last_affected":"2.2.0-p17"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p18:*:*:*:*:*:*","range":[{"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