{"id":"CVE-2026-113601","revision":null,"records":[{"revision":"cff8866d1fd64c1ba735d060e305d49d","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-113601","aliases":[],"title":"Memos before 0.27.0 Missing Authorization via ActivityService ListActivities/GetActivity","description":"Memos before 0.27.0 contains a missing authorization vulnerability in the ActivityService ListActivities and GetActivity API methods that allows authenticated users to view all users' activity records. Low-privileged attackers can enumerate sequential activity IDs to obtain creator IDs, timestamps, and memo-comment references, including activity on other users' private memos.","state":0,"publishedAt":"2026-10-20T15:40:28.941+00:00","modifiedAt":"2026-10-23T01:44:39.769+00:00","affected":[{"ecosystem":"Vendor product","name":"memos","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"usememos\",\n                    \"product\": \"memos\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"0.27.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:golang/github.com/usememos/memos\",\n                    \"repo\": \"https://github.com/usememos/memos\"\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"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/usememos/memos/issues/5651","https://github.com/usememos/memos/commit/04f239a2fc74f7090c779a6a7b8a08238fd31b88","https://github.com/usememos/memos/releases/tag/v0.27.0","https://github.com/usememos/memos/blob/v0.26.2/server/router/api/v1/activity_service.go","https://www.vulncheck.com/advisories/memos-before-0.27.0-missing-authorization-via-activityservice-listactivities-getactivity"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113601","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113601","identifiers":["CVE-2026-113601"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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