CVE-2026-55844 | Home Assistant is open source home automation software that … | CVSS 7.5 HIGH

Description

Home Assistant is open source home automation software that puts local control and privacy first. Prior to 2025.5.0, The iOS companion app ignores the SSID allowlist for internal networks. The app uses SSID to detect when to use the internal URL, but whenever the app cannot find any other URL to be used, it fallbacks to the internal URL as well, which can expose user's token when connected to a not secure network. This vulnerability is fixed in 2025.5.0.

Metadata

CVE ID: CVE-2026-55844
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-17 16:29 UTC
Published: 2026-06-29 14:19 UTC
Last updated: 2026-06-29 14:19 UTC
Primary CWE: CWE-319
CWE-319: Cleartext Transmission of Sensitive Information
Vendor / Product: home-assistant / core
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
home-assistant	core	—	< 2025.5.0

Weakness (CWE)

CWE	Source	Description
CWE-319	cna	CWE-319: Cleartext Transmission of Sensitive Information

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References (1)

https://github.com/home-assistant/core/security/advisories/GHSA-cm5v-547m-qh5h https://github.com/home-assistant/core/security/advisories/GHSA-cm5v-547m-qh5h