{"id":"CVE-2026-104910","revision":null,"records":[{"revision":"cb6fbb7de7fe4e40b57e77a9b99d966d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104910","aliases":[],"title":"MISP Information Disclosure via Related Events Listing Bypassing Per-Event Authorization","description":"MISP contains an authorization bypass in the related events listing functionality. When a user requests the list of events correlated to a given event, the system retrieved related event metadata directly from the correlation table without re-validating the caller's access rights against each related event.\n\nThe correlation table stores a snapshot of the event's distribution level and sharing group at the time the correlation was created, and does not carry the published flag. As a result, events that the caller is not permitted to open—because they are unpublished, or because their distribution or sharing group has changed since the correlation was recorded—were still returned with their metadata (title, date, correlating value counts).\n\nPreconditions:\n\n- An authenticated user with access to at least one event in MISP.\n\n- The existence of correlation entries linking that event to other events the user should not be able to view.\n\nImpact:\n\n- Unauthorized disclosure of event metadata (titles, dates, correlation counts) for events the user has no right to access.\n\n- Potential reconnaissance of threat-intelligence event names and timelines across sharing groups.\n\nAffected: MISP versions prior to the fix commit (2ffa97f05).","state":0,"publishedAt":"2026-10-02T16:01:32.781+00:00","modifiedAt":"2026-10-03T15:52:56.095+00:00","affected":[{"ecosystem":"Vendor product","name":"MISP","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"cpes\": [\n                        \"cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*\"\n                    ],\n                    \"modules\": [\n                        \"EventsController (viewRelatedEvents)\",\n                        \"Event model (getRelatedEvents)\"\n                    ],\n                    \"product\": \"MISP\",\n                    \"programFiles\": [\n                        \"app/Controller/EventsController.php\",\n                        \"app/Model/Event.php\"\n                    ],\n                    \"repo\": \"https://github.com/MISP/MISP\",\n                    \"vendor\": \"MISP\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"2.5.48\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/MISP/MISP/commit/2ffa97f05"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104910","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104910","identifiers":["CVE-2026-104910"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T17:59:29.7133238+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T17:59:29.7133238+00:00","lastSuccessAt":"2026-11-11T17:59:29.8786336+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.8786343+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-66440cb8d957f26a0d8f3a03b6765fa8b16e4c6b9cb48b55edd1ea7f4548f7f5","complete":true,"records":424194,"lastAttemptAt":"2026-11-11T17:57:32.9124856+00:00","lastSuccessAt":"2026-11-11T17:57:32.763439+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:57:32.9124856+00:00","snapshotPublishedAt":"2026-11-11T17:27:49+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8e2a34a18d694453aff340dede947f74","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T18:10:43.0838006+00:00","lastSuccessAt":"2026-11-11T18:10:43.078+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:10:43.078+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13584,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T17:59:29.7133238+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T17:59:29.7133238+00:00","lastSuccessAt":"2026-11-11T17:59:29.8793973+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.8793975+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-9169816ed33d4259981dbb50309d6730","complete":false,"records":13753,"lastAttemptAt":"2026-11-11T18:01:00.7925805+00:00","lastSuccessAt":"2026-11-11T16:59:52.052+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T16:59:52.052+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13713,"expectedIdentifiers":13813,"failedIdentifiers":100},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T17:59:29.6525853+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.6525853+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T17:57:32.9596215+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:57:32.9596215+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T17:59:29.6681473+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.6681473+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-757d3692f9a7b34792dad960197f3cc953a54db59b7d0ffe3835a0ed9926f76b","complete":true,"records":231690,"lastAttemptAt":"2026-11-11T17:59:29.4500285+00:00","lastSuccessAt":"2026-11-11T17:59:27.5166432+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.4500285+00:00","snapshotPublishedAt":"2026-11-11T17:48:14+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}