CVE-2026-48053: CWE-918: Server-Side Request Forgery (SSRF) in learningequality kolibri
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.
AI Analysis
Technical Summary
CVE-2026-48053 is a Server-Side Request Forgery (SSRF) vulnerability in Kolibri prior to version 0.19.4. Multiple API endpoints, including those on the RemoteFacilityUser* viewsets, accept an unvalidated 'baseurl' parameter. This parameter is used by the server to fetch URLs controlled by an attacker, and the server reflects the response body back to the client. The GET endpoint is unauthenticated, which could allow remote attackers to abuse the server to make arbitrary requests. The vulnerability was fixed in version 0.19.4.
Potential Impact
An attacker can exploit this SSRF vulnerability to make the Kolibri server perform arbitrary HTTP requests to attacker-controlled URLs. This may lead to information disclosure of internal resources accessible by the server. The vulnerability does not impact integrity or availability according to the CVSS vector. The unauthenticated nature of the GET endpoint increases the risk of exploitation. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Kolibri to version 0.19.4 or later, where this SSRF vulnerability is fixed. Since the vulnerability is resolved in this version, no additional mitigation steps are required.
CVE-2026-48053: CWE-918: Server-Side Request Forgery (SSRF) in learningequality kolibri
Description
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.
CVSS v3.1
Score 5.8medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48053 is a Server-Side Request Forgery (SSRF) vulnerability in Kolibri prior to version 0.19.4. Multiple API endpoints, including those on the RemoteFacilityUser* viewsets, accept an unvalidated 'baseurl' parameter. This parameter is used by the server to fetch URLs controlled by an attacker, and the server reflects the response body back to the client. The GET endpoint is unauthenticated, which could allow remote attackers to abuse the server to make arbitrary requests. The vulnerability was fixed in version 0.19.4.
Potential Impact
An attacker can exploit this SSRF vulnerability to make the Kolibri server perform arbitrary HTTP requests to attacker-controlled URLs. This may lead to information disclosure of internal resources accessible by the server. The vulnerability does not impact integrity or availability according to the CVSS vector. The unauthenticated nature of the GET endpoint increases the risk of exploitation. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Kolibri to version 0.19.4 or later, where this SSRF vulnerability is fixed. Since the vulnerability is resolved in this version, no additional mitigation steps are required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-20T18:15:53.579Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a834ee2bf8831d539567a91
Added to database: 08/17/2026, 18:11:46 UTC
Last enriched: 08/17/2026, 18:29:57 UTC
Last updated: 08/18/2026, 01:02:23 UTC
Views: 6
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