PatchTheCVECVE-2026-48053: Kolibri is an offline-first education platform
CVE-2026-48053 is a medium-severity flaw (CVSS 5.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- CISA SSVC: public proof of concept
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 69%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-08-17 |
| Last modified | 2026-10-23 |
Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: github.com/learningequality/kolibri/security/advisories/GHSA-4mj9-pf4r-cqrc
- Write-up: github.com/pypa/advisory-database/tree/main/vulns/kolibri/PYSEC-2026-2554.yaml
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-48053?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-48053 being exploited?
CVE-2026-48053 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-48053 affect?
CVE-2026-48053 affects affected software. Severity is medium (CVSS 5.8). 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 t
How urgent is CVE-2026-48053?
Priority 36/100. CISA SSVC: public proof of concept; Remotely exploitable, no login, no user action