CVE-2026-34736: CWE-287: Improper Authentication in openedx openedx-platform
Open edX Platform enables the authoring and delivery of online learning at any scale. From the maple release to before the ulmo release, an unauthenticated attacker can fully bypass the email verification process by combining two issues: the OAuth2 password grant issuing tokens to inactive users (documented behavior) and the activation_key being exposed in the REST API response at /api/user/v1/accounts/. This issue has been patched in the ulmo release.
AI Analysis
Technical Summary
CVE-2026-34736 is an improper authentication vulnerability (CWE-287) in the openedx-platform. Specifically, from the maple release to before the ulmo release, the OAuth2 password grant flow issues tokens to inactive users, which is documented behavior. Additionally, the activation_key is exposed in the REST API response at /api/user/v1/accounts/. An unauthenticated attacker can exploit these combined issues to fully bypass the email verification process. The vulnerability is patched in the ulmo release.
Potential Impact
An unauthenticated attacker can bypass the email verification process, potentially allowing them to activate accounts without proper verification. This could lead to unauthorized account activation and related integrity issues. There is no indication of confidentiality or availability impact. The CVSS vector indicates no confidentiality impact, low attack complexity, no privileges required, no user interaction, and unchanged scope.
Mitigation Recommendations
This vulnerability has been patched in the ulmo release of openedx-platform. Users should upgrade to the ulmo release or later to remediate this issue. Since this is not a cloud service, remediation requires applying the official patch by upgrading the software. No additional mitigations are indicated.
CVE-2026-34736: CWE-287: Improper Authentication in openedx openedx-platform
Description
Open edX Platform enables the authoring and delivery of online learning at any scale. From the maple release to before the ulmo release, an unauthenticated attacker can fully bypass the email verification process by combining two issues: the OAuth2 password grant issuing tokens to inactive users (documented behavior) and the activation_key being exposed in the REST API response at /api/user/v1/accounts/. This issue has been patched in the ulmo release.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-34736 is an improper authentication vulnerability (CWE-287) in the openedx-platform. Specifically, from the maple release to before the ulmo release, the OAuth2 password grant flow issues tokens to inactive users, which is documented behavior. Additionally, the activation_key is exposed in the REST API response at /api/user/v1/accounts/. An unauthenticated attacker can exploit these combined issues to fully bypass the email verification process. The vulnerability is patched in the ulmo release.
Potential Impact
An unauthenticated attacker can bypass the email verification process, potentially allowing them to activate accounts without proper verification. This could lead to unauthorized account activation and related integrity issues. There is no indication of confidentiality or availability impact. The CVSS vector indicates no confidentiality impact, low attack complexity, no privileges required, no user interaction, and unchanged scope.
Mitigation Recommendations
This vulnerability has been patched in the ulmo release of openedx-platform. Users should upgrade to the ulmo release or later to remediate this issue. Since this is not a cloud service, remediation requires applying the official patch by upgrading the software. No additional mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-30T18:41:20.754Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69ceb81be6bfc5ba1df6de9d
Added to database: 4/2/2026, 6:40:27 PM
Last enriched: 4/9/2026, 10:45:39 PM
Last updated: 5/20/2026, 8:50:51 PM
Views: 35
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