CVE-2026-54317

HIGH EPSS 9.2%
Published Jun 23, 20261w ago · Modified Jun 23, 20261w ago
7.6 CVSS 3.1
High
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Published Jun 23, 2026 1w ago
Last Modified Jun 23, 2026 1w ago

Description

Home Assistant is open source home automation software that puts local control and privacy first. Prior to 2026.6.0, the Konnected integration registers an HTTP endpoint, KonnectedView (homeassistant/components/konnected/__init__.py), that is marked as not requiring authentication (requires_auth = 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 update_sensor(), which does check the request's Authorization: Bearer <token> header against the integration's stored access tokens (using hmac.compare_digest). Read requests (GET) are handled by a separate get() method that has no authentication check at all. This vulnerability is fixed in 2026.6.0.

CVSS Details

Base Score
7.6
Exploitability
2.8
Impact
4.7
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
9.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-306 Missing Authentication for Critical Function Authentication

References 1

  • github.com https://github.com/home-assistant/core/security/advisories/GHSA-x84v-g949-293w

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.