ok? (and similar -stable to 7.6.5?)
it's being renamed, I've just changed URLs so far for that.

https://vinyl-cache.org/security/VSV00017.html#vsv00017

Index: Makefile
===================================================================
RCS file: /cvs/ports/www/varnish/Makefile,v
diff -u -p -r1.86 Makefile
--- Makefile	20 May 2025 19:22:25 -0000	1.86
+++ Makefile	15 Sep 2025 19:12:25 -0000
@@ -1,19 +1,19 @@
 COMMENT =		high-performance HTTP accelerator
 
-DISTNAME =		varnish-7.7.1
+DISTNAME =		varnish-7.7.3
 
 CATEGORIES =		www
 
 SHARED_LIBS =		varnishapi      4.0     # 3.0
 
-HOMEPAGE =		https://www.varnish-cache.org/
+HOMEPAGE =		https://www.vinyl-cache.org/
 
 MAINTAINER =		Gonzalo L. Rodriguez <gonzalo@openbsd.org>
 
 # BSD
 PERMIT_PACKAGE =	Yes
 
-SITES =			https://varnish-cache.org/_downloads/
+SITES =			https://vinyl-cache.org/_downloads/
 
 EXTRACT_SUFX =		.tgz
 
Index: distinfo
===================================================================
RCS file: /cvs/ports/www/varnish/distinfo,v
diff -u -p -r1.41 distinfo
--- distinfo	20 May 2025 19:22:25 -0000	1.41
+++ distinfo	15 Sep 2025 19:12:25 -0000
@@ -1,2 +1,2 @@
-SHA256 (varnish-7.7.1.tgz) = TAbFyZaApCm3KTT5/VE5Y/fhuoVTszyn7BLIWlwrdRo=
-SIZE (varnish-7.7.1.tgz) = 4350220
+SHA256 (varnish-7.7.3.tgz) = 6W7q/Ez+KlWO0vtU8eIr46PZlfRvjADaVF1YOq74AjY=
+SIZE (varnish-7.7.3.tgz) = 4235804