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CVE-2026-26717
Published: Feb 25, 2026
Modified: Feb 26, 2026
PUBLISHED
Description
An issue in OpenFUN Richie (LMS) in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the sync_course_run_from_request function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response time discrepancies
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
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