{
"id": "GHSA-3pm4-cw53-2cg9",
"aliases": [
"CVE-2026-85210"
],
"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.",
"affected": [],
"modified": "2026-09-03T15:32:26Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
},
{
"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"published": "2026-09-03T15:32:26Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85210",
"type": "ADVISORY"
},
{
"url": "https://github.com/oppia/oppia/issues/26652",
"type": "WEB"
},
{
"url": "https://github.com/oppia/oppia",
"type": "WEB"
},
{
"url": "https://github.com/oppia/oppia/blob/v3.5.2/core/controllers/admin.py",
"type": "WEB"
},
{
"url": "https://www.vulncheck.com/advisories/oppia-through-3.5.2-missing-authorization-on-adminrolehandler-get",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-862"
],
"severity": "MODERATE",
"github_reviewed": false,
"nvd_published_at": "2026-09-03T15:17:40Z",
"github_reviewed_at": null
}
}