CVE-2026-34736

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openedx/openedx-platform/commit/ad342ae16e6af0b46460ca05f47697ac755feba8
https://github.com/openedx/openedx-platform/security/advisories/GHSA-m6rg-rp98-4crw

Configurations

No configuration.

History

24 Jul 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) La Plataforma Open edX permite la creación y entrega de aprendizaje en línea a cualquier escala. Desde la versión maple hasta antes de la versión ulmo, un atacante no autenticado puede eludir completamente el proceso de verificación de correo electrónico al combinar dos problemas: la concesión de contraseña de OAuth2 que emite tokens a usuarios inactivos (comportamiento documentado) y la exposición de la activation_key en la respuesta de la API REST en /api/user/v1/accounts/. Este problema ha sido parcheado en la versión ulmo.

02 Apr 2026, 19:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-02 19:21

Updated : 2026-07-24 21:10

NVD link : CVE-2026-34736

Mitre link : CVE-2026-34736

CVE.ORG link : CVE-2026-34736

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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