{"id":"CVE-2026-113601","summary":"Memos before 0.27.0 Missing Authorization via ActivityService ListActivities/GetActivity","details":"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.","modified":"2026-10-23T10:30:44.211657703Z","published":"2026-10-20T15:40:28.941Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113601.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113601.json"},{"type":"PACKAGE","url":"https://github.com/usememos/memos"},{"type":"ARTICLE","url":"https://github.com/usememos/memos/blob/v0.26.2/server/router/api/v1/activity_service.go"},{"type":"FIX","url":"https://github.com/usememos/memos/commit/04f239a2fc74f7090c779a6a7b8a08238fd31b88"},{"type":"REPORT","url":"https://github.com/usememos/memos/issues/5651"},{"type":"ADVISORY","url":"https://github.com/usememos/memos/releases/tag/v0.27.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113601"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/memos-before-0.27.0-missing-authorization-via-activityservice-listactivities-getactivity"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/usememos/memos","events":[{"introduced":"0"},{"fixed":"1fd6a2a385175399fb515d50d44bee4cda30b40c"},{"fixed":"04f239a2fc74f7090c779a6a7b8a08238fd31b88"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"0"},{"fixed":"0.27.0"}]},{"range":[{"fixed":"04f239a2fc74f7090c779a6a7b8a08238fd31b88"}],"source":"REFERENCES_COMMIT"},{"source":"REFERENCES_TAG","original_tag":"v0.27.0","range":[{"fixed":"1fd6a2a385175399fb515d50d44bee4cda30b40c"}]}]}}],"versions":["v0.26.2","v0.26.1","v0.26.0","v0.25.3","v0.25.2","v0.25.1","v0.25.0","v0.24.4","v0.24.3","v0.24.2","v0.24.1","v0.24.0","v0.23.1","v0.23.0","v0.23.0-rc.3","v0.23.0-rc.2","v0.23.0-rc.1","v0.23.0-rc.0","v0.22.5","v0.22.4","v0.22.3","v0.22.2","v0.22.1","v0.22.0","v0.21.0","v0.20.1","v0.20.0","v0.19.1","v0.19.0","v0.18.2","v0.18.1","v0.18.0","v0.17.1","v0.16.1","v0.16.0","v0.15.2","v0.15.1","v0.15.0","v0.14.4","v0.14.3","v0.14.2","v0.14.1","v0.14.0","v0.13.2","v0.13.1","v0.13.0","v0.12.2","v0.12.1","v0.12.0","v0.11.2","v0.11.1","v0.11.0","v0.10.3","v0.10.2","v0.9.1","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.1","v0.6.0","v0.5.0","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.1.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113601.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:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}