diff --git a/pkgs/servers/varnish/default.nix b/pkgs/servers/varnish/default.nix
index 4d0181c587ba..c60e02ff5963 100644
--- a/pkgs/servers/varnish/default.nix
+++ b/pkgs/servers/varnish/default.nix
@@ -141,6 +141,9 @@ let
           lib.maintainers.osnyx
         ];
         platforms = lib.platforms.unix;
+        knownVulnerabilities = lib.optionals (lib.versions.major version == "7") [
+          "VSV00018: https://vinyl-cache.org/security/VSV00018.html"
+        ];
       };
     };
 in