CVE-2026-34736: Openedx Openedx-Platform

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Openedx Openedx-Platform: from maple, before ulmo (fixed in ulmo)

Published 2026-04-02. Last modified 2026-07-24.