CVE-2026-25123: Homarr affected by Unauthenticated SSRF / Port-Scan Primitive via widget.app.ping
Homarr is an open-source dashboard. Prior to 1.52.0, a public (unauthenticated) tRPC endpoint widget.app.ping accepts an arbitrary url and performs a server-side request to that URL. This allows an unauthenticated attacker to trigger outbound HTTP requests from the Homarr server, enabling SSRF behavior and a reliable port-scanning primitive (open vs closed ports can be inferred from statusCode vs fetch failed and timing). This vulnerability is fixed in 1.52.0.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-25123?
CVE-2026-25123 is a high-severity vulnerability due to its potential for unauthenticated SSRF and port scanning.
How do I fix CVE-2026-25123?
To fix CVE-2026-25123, upgrade Homarr to version 1.52.0 or later.
What does CVE-2026-25123 affect?
CVE-2026-25123 affects versions of Homarr prior to 1.52.0.
What is the nature of CVE-2026-25123?
CVE-2026-25123 is an unauthenticated server-side request forgery vulnerability.
Can CVE-2026-25123 be exploited remotely?
Yes, CVE-2026-25123 can be exploited remotely since it allows unauthenticated access to a tRPC endpoint.