From 7ccf9cfefc6c51b33554f4e3c360ac4c0a488bad Mon Sep 17 00:00:00 2001
From: Maxwell <145994855+ping-maxwell@users.noreply.github.com>
Date: Fri, 27 Feb 2026 11:54:51 -0800
Subject: [PATCH] fix(next-cookies): leaks unnecessary cookie (#8193)

---
 packages/better-auth/src/integrations/next-js.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/better-auth/src/integrations/next-js.ts b/packages/better-auth/src/integrations/next-js.ts
index 09964ec4cf..22bda311f1 100644
--- a/packages/better-auth/src/integrations/next-js.ts
+++ b/packages/better-auth/src/integrations/next-js.ts
@@ -47,6 +47,8 @@ export const nextCookies = () => {
 						}
 						try {
 							cookieStore.set("__better-auth-cookie-store", "1", { maxAge: 0 });
+							// If cookie was set successfully, we should clean up.
+							cookieStore.delete("__better-auth-cookie-store");
 						} catch {
 							await setShouldSkipSessionRefresh(true);
 						}