Medium 5.3Published Apr 2, 2026

CVE-2026-34736Open edX Platform: Account Activation Bypass via activation_key Exposure in REST API

Updated under an hour ago (Oct 26, 2026, 2:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for openedx-platform

Exploited in the last 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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-287
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Apr 3, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

openedx openedx-platform openedx:platform (from the name)	from maple, < ulmo	CNA record

References

References

https://github.com/openedx/openedx-platform/security/advisories/GHSA-m6rg-rp98-4crw	x-refsource-confirm
https://github.com/openedx/openedx-platform/commit/ad342ae16e6af0b46460ca05f47697ac755feba8	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.