DEBIAN-CVE-2026-23920

Host and event action script input is validated with a regex set by the administrator, but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands...

CVE-2026-23920 Host and event action script regex validation can be bypassed in certain situations, leading to potential command injection

Host and event action script input is validated with a regex set by the administrator, but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands...

CVE-2026-23920

The CVE describes a bypass of input validation for host and event action scripts where a regex (admin-set) is evaluated in multiline mode. If ^ and $ anchors are used in input validation, an injected newline can bypass the check and allow authenticated users to inject shell commands. The descript...