CVE-2026-48053: Learningequality Kolibri

Medium severity, CVSS 5.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Kolibri is an offline-first education platform. Prior to version 0.19.4, several Kolibri API endpoints accept an unvalidated `baseurl` parameter and fetch attacker-controlled URLs from the Kolibri server, reflecting the response body back to the caller. The original report identified two endpoints on the `RemoteFacilityUser*` viewsets; remediation review found two further reflection points on the same pattern. The GET endpoint was unauthenticated. Version 0.19.4 fixes the vulnerability.

Affected products

• Learningequality Kolibri: before 0.19.4 (fixed in 0.19.4)

Published 2026-08-17. Last modified 2026-09-18.