CVE-2026-18369

A flaw was found in Dogtag PKI's ACME responder where the HTTP-01 challenge validator accepts IP address literals as dns identifiers and follows HTTP redirects without validating that the target is a public address. An unauthenticated ACME account holder can exploit this to perform server-side...

UBUNTU-CVE-2026-18369

A flaw was found in Dogtag PKI's ACME responder where the HTTP-01 challenge validator accepts IP address literals as dns identifiers and follows HTTP redirects without validating that the target is a public address. An unauthenticated ACME account holder can exploit this to perform server-side...

Linux Distros Unpatched Vulnerability : CVE-2026-18369

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Dogtag PKI's ACME responder where the HTTP-01 challenge validator accepts IP address literals as dns identifiers and follows HTTP redirects...

PT-2026-65459

Name of the Vulnerable Software and Affected Versions Dogtag PKI affected versions not specified Description A flaw in the ACME responder allows an unauthenticated attacker to bypass Tomcat authentication constraints. This occurs because the web.xml security constraints use exact URL pattern...