Is CVE-2026-34736 actively exploited?

No active exploitation of CVE-2026-34736 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34736 be exploited remotely?

Yes. CVE-2026-34736 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34736?

CVE-2026-34736 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-34736

CWE-287Published: April 2, 2026· Updated: Apr 3, 2026

5.3

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:15.2th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34736 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.