CVE-2026-59717 Home Assistant Companion: `homeassistant://invite` Deep Link Credential Phishing
Attackers can phish credentials by redirecting users to malicious login pages via deep links in the Home Assistant Android app.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-59717?
CVE-2026-59717 is a medium-severity vulnerability in home-assistant core, published on 7 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.6.1, the Android Companion app is vulnerable to an open redirect. The app passes the URL fragment from a homeassistant://invite deep link into the onboarding flow without ever displaying the destination hostname. Because no screen in the invitation or onboarding flow shows the parsed server URL before onboarding commits to it, a victim has no way to distinguish a legitimate invite from a malicious one. An attacker can craft an invite so that a single tap on the legitimate-looking "Connect to my Home Assistant server" button opens their /auth/authorize endpoint in the URL-less onboarding WebView, presenting a look-alike login page that captures the victim's credentials. Since invitations are intended to onboard brand-new users, targets are especially unlikely to notice the substitution. This issue is fixed in version 2026.6.1.
Which versions are affected by CVE-2026-59717?
How do I fix CVE-2026-59717?
No fix has been published for CVE-2026-59717 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59717 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59717 exists.
Sources
Also known as GHSA-68f4-97mf-f68w.