CVE-2026-54317
HighCVSS 7.6Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
In Home Assistant before version 2026.6.0, the Konnected integration exposes an HTTP endpoint where GET requests require no authentication, contrary to the code comment. Write requests (POST/PUT) are token-protected, but read requests (GET) are completely unprotected.
Risk Assessment
An attacker can read Konnected sensor data without authentication, potentially leaking information about home automation state, such as door openings or motion.
Recommendation
Immediately update Home Assistant to version 2026.6.0 or later, which fixes this vulnerability.
Related vulnerabilities
- CVE-2026-119446Critical
A Session Fixation vulnerability in the CLI login flow in nerves_hub_web allows an unauthenticated attacker to obtain an API token for another user's account via a crafted login link. The confirmation code is only displayed and never compared, so it cannot prove that the confirming person is the one who started the login.
- CVE-2026-60043Critical
An unauthenticated remote attacker can perform an XSS attack on a logged-in backend user, allowing execution of multiple critical system actions such as shutting down the server or restoring an uploaded backup.
- CVE-2026-13312Critical
The described vulnerability could allow an attacker to compromise a system. Technical details are not provided in the description.
- CVE-2026-115646Critical
A partial string comparison vulnerability in HiRDB. The issue affects HiRDB Server Version 10 (from 10-00 before 10-12-01) and Version 9 (from 09-50-06 through 09-66-22), including versions with additional functions.
- CVE-2026-89126Critical
SAP Web Dispatcher does not sufficiently validate certain network input processed by an internal component. An unauthenticated attacker could send specially crafted network traffic to trigger memory corruption, potentially leading to arbitrary code execution and full system compromise.
- CVE-2026-89119Critical
SAP Web Dispatcher and SAP NetWeaver Application Server ABAP (Internet Communication Manager) do not perform sufficient request validation in certain administrative functionality. An unauthenticated attacker could trick a logged-on administrator into visiting a malicious link, causing unintended actions in the administrator's session and potentially leading to full compromise of the underlying operating system.
- CVE-2026-89103Critical
SAP Gateway activates the default Access Control List with high privileges, allowing categorization of an external attacker as an internal application server. An unauthenticated attacker with network access to SAP Gateway could exploit this weakness to perform unauthorized actions within the application environment.
- CVE-2026-76965Critical
SAP NetWeaver Application Server ABAP and ABAP Platform do not perform necessary authorization checks for certain internal functionality. An attacker with low privileges could invoke the affected functionality to execute arbitrary operating system commands on the underlying host.
- CVE-2026-76964Critical
SAP NetWeaver Application Server ABAP does not sufficiently validate certain network input processed by an internal component. An unauthenticated attacker could send specially crafted network traffic to trigger memory corruption, potentially leading to arbitrary code execution and full system compromise.
- CVE-2026-125086Critical
D-Link M60 1.12.B01 contains hard-coded credentials in the /etc/emDaemon/mosquitto.conf file of the emDaemon MQTT Broker component. The vulnerability can be exploited remotely, and a public exploit may already be in use.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

