Home Assistant: Konnected alarm-panel switch state and zone topology disclosed to unauthenticated actors on the LAN

Exploitation

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

CVSS

7.6 · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

EPSS

• CVE-2026-54317: 0.31% estimated exploitation activity in the next 30 days; percentile 23.70 (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 The Konnected integration registers an HTTP endpoint, KonnectedView (homeassistant/components/konnected/init.py), that is marked as not requiring authentication (requiresauth = False). A comment next to that line says auth is instead handled "via the access token from configuration." That promise is only half true: - Write requests (POST and PUT) are handled by updatesensor(), which does check the request's Authorization: Bearer <token header against the integration's stored access tokens (using hmac.comparedigest). - Read requests (GET) are handled by a separate get() method that has no authentication check at all. By sending GET requests to /api/konnected/device/{deviceid}?zone=N, any unauthenticated client on the LAN can: 1. Enumerate configured Konnected device IDs — the endpoint returns a clean 404-vs-200 difference that acts as an oracle for which devices exist. 2. Read switch output states — the on/off state of every switch output (siren, strobe, and relay outputs of…

Published by the source

19 Jun 2026, 19:35 UTC

Last modified by the source

20 Jul 2026, 21:30 UTC

Source last checked

26 Oct 2026, 13:49 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-x84v-g949-293w

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-x84v-g949-293w

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# Patch Next advisory brief: CVE-2026-54317

Advisory: Home Assistant: Konnected alarm-panel switch state and zone topology disclosed to unauthenticated actors on the LAN
IDs: CVE-2026-54317, GHSA-x84v-g949-293w
Record: https://patchnext.com/advisories/cve-2026-54317 (revision 2, source checked 26 Oct 2026, 13:49 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.6)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: homeassistant 2026.6.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI homeassistant: affected < 2026.6.0; fixed in 2026.6.0

## Suggested inspection (read-only)
- `python -m pip show homeassistant`: 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 homeassistant.
- 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-x84v-g949-293w (OSV record GHSA-x84v-g949-293w lists affected ranges: PyPI homeassistant >=0 <2026.6.0 (fixed))
- Verified: https://github.com/advisories/GHSA-x84v-g949-293w (GitHub-reviewed advisory GHSA-x84v-g949-293w lists affected ranges: PyPI homeassistant >=0 <2026.6.0)

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