From c6c4a99300bebdd3fd5a6af9ebca0053e3cbc8f7 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 1 Dec 2025 11:00:47 +0100
Subject: [PATCH] http: acknowledge OOM errors from Curl_input_ntlm

Closes #19781
---
 lib/http.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/http.c b/lib/http.c
index 5e2b8f9ac0..fcae0a57c2 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -946,6 +946,8 @@ static CURLcode auth_ntlm(struct Curl_easy *data,
       if(!result)
         data->state.authproblem = FALSE;
       else {
+        if(result == CURLE_OUT_OF_MEMORY)
+          return result;
         infof(data, "NTLM authentication problem, ignoring.");
         data->state.authproblem = TRUE;
       }