SSRF in Learningequality Kolibri
CVE-2026-48053
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Learningequality Kolibri — versions < 0.19.4
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-48053?
- CVE-2026-48053 is a medium-severity vulnerability in Learningequality Kolibri, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2026-08-17.
- How severe is CVE-2026-48053?
- Medium severity. CVSS v3 base score is 5.8 out of 10.