---
id: CVE-2026-48053
title: Kolibri is an offline-first education platform
summary: >-
  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 bac…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: kolibri
product: kolibri
affected:
  - kolibri <= 0.19.3
patched:
  - kolibri 0.19.4
published: '2026-08-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48053'
references:
  - url: 'https://github.com/learningequality/kolibri/releases/tag/v0.19.4'
    label: security-advisories@github.com
  - url: >-
      https://github.com/learningequality/kolibri/security/advisories/GHSA-4mj9-pf4r-cqrc
    label: security-advisories@github.com
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/kolibri/PYSEC-2026-2554.yaml
    label: security-advisories@github.com
  - url: >-
      https://github.com/learningequality/kolibri/security/advisories/GHSA-4mj9-pf4r-cqrc
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-4mj9-pf4r-cqrc'
tags:
  - nvd
  - ghsa
  - pip
epss: 0.00384
epssPercentile: 0.29731
aliases:
  - GHSA-4mj9-pf4r-cqrc
ecosystem: pip
ingestedAt: '2026-07-07T15:41:59.299Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-48053)

Affected packages:

- `kolibri <= 0.19.3`

Patched in:

- `kolibri 0.19.4`

Source: https://github.com/advisories/GHSA-4mj9-pf4r-cqrc