Kolibri has Unauthenticated Server-Side Request Forgery (SSRF) in RemoteFacilityUserViewset

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

EPSS

• CVE-2026-48053: 0.38% estimated exploitation activity in the next 30 days; percentile 32.55 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary 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. Affected endpoints Reported: - GET /api/auth/remotefacilityuser → RemoteFacilityUserViewset (kolibri/core/auth/api.py:1570). No authentication required. - POST /api/auth/remotefacilityauthenticateduserinfo → RemoteFacilityUserAuthenticatedViewset (kolibri/core/auth/api.py:1594). Authentication is checked against the remote server rather than the local Kolibri. Found during remediation: - POST /api/public/setupwizard/loddata → setup wizard's remote-signup proxy (kolibri/plugins/setupwizard/api.py). Reachable on unprovisioned devices. - GET /api/public/networklocation/<id/facilities/ →…

Published by the source

11 Jun 2026, 17:10 UTC

Last modified by the source

13 Jul 2026, 16:43 UTC

Source last checked

26 Oct 2026, 13:45 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-4mj9-pf4r-cqrc

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-4mj9-pf4r-cqrc

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# Patch Next advisory brief: CVE-2026-48053

Advisory: Kolibri has Unauthenticated Server-Side Request Forgery (SSRF) in RemoteFacilityUserViewset
IDs: CVE-2026-48053, GHSA-4mj9-pf4r-cqrc
Record: https://patchnext.com/advisories/cve-2026-48053 (revision 2, source checked 26 Oct 2026, 13:45 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: kolibri 0.19.4. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI kolibri: affected <= 0.19.3; fixed in 0.19.4

## Suggested inspection (read-only)
- `python -m pip show kolibri`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on kolibri.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-4mj9-pf4r-cqrc (OSV record GHSA-4mj9-pf4r-cqrc lists affected ranges: PyPI kolibri >=0 <0.19.4 (fixed))
- Verified: https://github.com/advisories/GHSA-4mj9-pf4r-cqrc (GitHub-reviewed advisory GHSA-4mj9-pf4r-cqrc lists affected ranges: PyPI kolibri >=0 <=0.19.3)

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