{"id":"CVE-2026-13061","summary":"Improper Access Control Allowing Cross-User Session Metadata Disclosure in $listSessions Aggregation Stage","details":"An authenticated user may be able to view session metadata belonging to other users on the system through the $listSessions aggregation stage. This information is normally restricted to users with cluster-level administrative privileges, and includes active session identifiers, associated usernames, and activity timestamps.","modified":"2026-08-07T03:30:26.287082990Z","published":"2026-07-22T19:19:34.846Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"7.0"},{"fixed":"7.0.39"},{"introduced":"8.0"},{"fixed":"8.0.28"},{"introduced":"8.3.0"},{"fixed":"8.3.7"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"mongodb","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13061.json"},"references":[{"type":"WEB","url":"https://jira.mongodb.org/browse/SERVER-127689"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13061.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13061"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mongodb/mongo","events":[{"introduced":"37d84072b5c5b9fd723db5fa133fb202ad2317f1"},{"fixed":"0c0ddf9b45db1492d57cef505c547f3a954a0c80"},{"introduced":"b41cda4fe697dce6fd9b83b3805362ccc02fbeb3"},{"fixed":"dc5344b376fdfab0fe5b2982f125c056ab0abcd8"},{"introduced":"0f29b043a58fdd251ce0a0b32754b8459613c933"},{"fixed":"527067edda13efcac3d257b3cdb1c510c57b3c6e"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*","extracted_events":[{"introduced":"7.0.0"},{"fixed":"7.0.39"},{"introduced":"8.0.0"},{"fixed":"8.0.28"},{"introduced":"8.3.0"},{"fixed":"8.3.7"}]}}],"versions":["r7.0.35","r8.0.24","r8.3.3","r8.3.0","r7.0.27-rc0","r7.0.27","r8.0.17-alpha0","r8.0.16-rc1","r8.0.16","r7.0.27-alpha0","r7.0.26-rc0","r7.0.26","r8.0.16-rc0","r8.0.14-rc1","r8.0.14","r7.0.24-rc0","r7.0.24","r7.0.25-alpha0","r8.0.14-rc0","r8.0.13-rc2","r8.0.13","r8.0.13-rc1","r8.0.13-rc0","r7.0.23-rc1","r7.0.23","r7.0.23-rc0","r7.0.22-rc0","r7.0.22","r8.0.12-rc0","r8.0.12","r8.0.10-rc0","r8.0.10","r7.0.21-rc0","r7.0.21","r7.0.21-alpha0","r7.0.18","r8.0.6","r7.0.17","r8.0.5-rc2","r8.0.5","r8.0.5-rc1","r8.0.5-rc0","r7.0.16-rc1","r7.0.16-rc0","r7.0.16","r8.0.4-rc0","r8.0.4","r7.0.15","r8.0.3","r8.0.2","r7.0.15-rc1","r7.0.15-rc0","r8.0.1-rc0","r8.0.1","r8.0.0","r7.0.14-rc0","r7.0.14","r7.0.13-rc1","r7.0.13","r7.0.13-rc0","r7.0.12-rc1","r7.0.12","r7.0.12-rc0","r7.0.11-rc2","r7.0.11","r7.0.11-rc1","r7.0.11-rc0","r7.0.10-rc0","r7.0.10","r7.0.9-rc1","r7.0.9","r7.0.9-rc0","r7.0.8-rc0","r7.0.8","r7.0.7-rc2","r7.0.7","r7.0.7-rc1","r7.0.7-rc0","r7.0.6-rc0","r7.0.6","r7.0.5-rc0","r7.0.5","r7.0.4-rc0","r7.0.4","r7.0.3-rc1","r7.0.3","r7.0.3-rc0","r7.0.2-rc2","r7.0.2","r7.0.2-rc1","r7.0.2-rc0","r7.0.1-rc0","r7.0.1","r7.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13061.json"}}],"schema_version":"1.8.0","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"}]}