{"id":"CVE-2026-85210","summary":"Oppia through 3.5.2 Missing Authorization on AdminRoleHandler GET","details":"Oppia's AdminRoleHandler GET endpoint in core/controllers/admin.py is decorated with open_access, allowing any registered user to enumerate privileged accounts and roles. Attackers can query the endpoint with filter_criterion parameters to retrieve usernames holding specific roles, banned flags, and managed topic identifiers without authorization.","modified":"2026-09-06T03:31:02.731844986Z","published":"2026-09-03T14:12:21.815Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85210.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85210.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85210"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/oppia-through-3.5.2-missing-authorization-on-adminrolehandler-get"},{"type":"REPORT","url":"https://github.com/oppia/oppia/issues/26652"},{"type":"PACKAGE","url":"https://github.com/oppia/oppia"},{"type":"ARTICLE","url":"https://github.com/oppia/oppia/blob/v3.5.2/core/controllers/admin.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oppia/oppia","events":[{"introduced":"0"},{"last_affected":"380f9db39baba66ab6d2210a38da0d4825466300"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"3.5.2"}],"source":"AFFECTED_FIELD"}}],"versions":["v3.5.2","v2.8.6","v2.6.8","v2.3.7","v2.3.6","v2.3.5","v2.3.4","v2.3.3","v2.3.2","v2.3.1","v2.3.0","v2.2.0","v2.1.4","v2.1.2","v2.1.0","v2.0.3","v2.0.0","v2.0.0.rc.2","v2.0.0.rc.1","v1.2.8","v1.2.7","v1.2.1","v1.2.0","v1.1.0","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85210.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"}]}