CVE-2026-26717
MEDIUM SEVERITYCVSS Score & Metrics
Base Score
4.8 / 10
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Vulnerability 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
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-208
Source
NVD
Vendor
pip
Product
richie
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