CVE-2026-85210 Oppia through 3.5.2 Missing Authorization on AdminRoleHandler GET
Any registered user can enumerate privileged accounts and roles via the AdminRoleHandler GET endpoint due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85210?
CVE-2026-85210 is a medium-severity missing authorization vulnerability in oppia, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-85210?
How do I fix CVE-2026-85210?
No fix has been published for CVE-2026-85210 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-85210 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85210 exists.
Sources
Also known as GHSA-3pm4-cw53-2cg9.