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TI-2026-58536 Aliases CVE-2026-85210GHSA-3pm4-cw53-2cg9

Oppia through 3.5.2 Missing Authorization on AdminRoleHandler GET

Priority MEDIUM 57CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00342 27th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
oppiaoppiaup to 3.5.2—No fix listedCNA
  • oppia Vendoroppia Affected up to 3.5.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85210
  2. 2026-10-03 Alias added: GHSA-3pm4-cw53-2cg9

References

Other 3

  • TI-2023-20911 Timing Attack Reveals CSRF Tokens in oppia CVSS 3.1MEDIUM 5.3
  • TI-2021-18392 Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them. CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences