diff --git a/security/Makefile b/security/Makefile
--- a/security/Makefile
+++ b/security/Makefile
@@ -1247,6 +1247,7 @@
     SUBDIR += uacme
     SUBDIR += ubuntu-keyring
     SUBDIR += unhide
+    SUBDIR += unix-selfauth-helper
     SUBDIR += vanguards-tor
     SUBDIR += vault
     SUBDIR += vaultwarden
diff --git a/security/unix-selfauth-helper/Makefile b/security/unix-selfauth-helper/Makefile
new file mode 100644
--- /dev/null
+++ b/security/unix-selfauth-helper/Makefile
@@ -0,0 +1,21 @@
+# Created by: Felix Palmen <felix@palmen-it.de>
+
+PORTNAME=	unix-selfauth-helper
+PORTVERSION=	1.0
+DISTVERSIONPREFIX=	v
+CATEGORIES=	security
+
+MAINTAINER=	felix@palmen-it.de
+COMMENT=	Local self-authentication for pam_exec
+
+LICENSE=	BSD2CLAUSE
+
+USES=		uidfix
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	Zirias
+
+PLIST_FILES=	libexec/unix-selfauth-helper \
+		man/man8/unix-selfauth-helper.8.gz
+
+.include <bsd.port.mk>
diff --git a/security/unix-selfauth-helper/distinfo b/security/unix-selfauth-helper/distinfo
new file mode 100644
--- /dev/null
+++ b/security/unix-selfauth-helper/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1655634372
+SHA256 (Zirias-unix-selfauth-helper-v1.0_GH0.tar.gz) = 5a1aff046fb9e76555d7289afbe9c54d73269b5903a2f77f40b456840149a6ef
+SIZE (Zirias-unix-selfauth-helper-v1.0_GH0.tar.gz) = 3924
diff --git a/security/unix-selfauth-helper/pkg-descr b/security/unix-selfauth-helper/pkg-descr
new file mode 100644
--- /dev/null
+++ b/security/unix-selfauth-helper/pkg-descr
@@ -0,0 +1,5 @@
+This is a little suid-root helper allowing self-authentication against the
+local unix passwd database using pam_exec on a FreeBSD system. As a result,
+the behavior of LinuxPAM is mimicked without changes to the pam_unix module.
+
+WWW: https://github.com/Zirias/unix-selfauth-helper