diff --git a/UPGRADING b/UPGRADING
index 6cc0cc537df2d..e59bfe2d64584 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -147,6 +147,11 @@ PHP 8.5 UPGRADE NOTES
     indicating the http and proxy authentication methods that were
     used in the previous request. See CURLAUTH_* constants for
     possible values.
+  . Added CURLOPT_INFILESIZE_LARGE Curl option, which is a safe
+    replacement for CURLOPT_INFILESIZE_LARGE. On certain systems,
+    CURLOPT_INFILESIZE only accepts a 32-bit signed integer as the file
+    size (2.0 GiB) even on 64-bit systems. CURLOPT_INFILESIZE_LARGE
+    accepts the largest integer size the system can handle.
 
 - DOM:
   . Added Dom\Element::$outerHTML.
diff --git a/ext/curl/curl.stub.php b/ext/curl/curl.stub.php
index c9abe237339b5..6a73913f8a85e 100644
--- a/ext/curl/curl.stub.php
+++ b/ext/curl/curl.stub.php
@@ -188,6 +188,11 @@
  * @cvalue CURLOPT_INFILESIZE
  */
 const CURLOPT_INFILESIZE = UNKNOWN;
+/**
+ * @var int
+ * @cvalue CURLOPT_INFILESIZE_LARGE
+ */
+const CURLOPT_INFILESIZE_LARGE = UNKNOWN;
 /**
  * @var int
  * @cvalue CURLOPT_INTERFACE
diff --git a/ext/curl/curl_arginfo.h b/ext/curl/curl_arginfo.h
index 6a81d1e92c88f..53a59fe47be49 100644
--- a/ext/curl/curl_arginfo.h
+++ b/ext/curl/curl_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 48fc95503f4f8cc96575ff6f31fdd1e4cdc5969e */
+ * Stub hash: 77da3a34f08b3e932a0545f72b41bf0353e8b157 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_curl_close, 0, 1, IS_VOID, 0)
 	ZEND_ARG_OBJ_INFO(0, handle, CurlHandle, 0)
@@ -263,6 +263,7 @@ static void register_curl_symbols(int module_number)
 	REGISTER_LONG_CONSTANT("CURLOPT_HTTP_VERSION", CURLOPT_HTTP_VERSION, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLOPT_INFILE", CURLOPT_INFILE, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLOPT_INFILESIZE", CURLOPT_INFILESIZE, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("CURLOPT_INFILESIZE_LARGE", CURLOPT_INFILESIZE_LARGE, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLOPT_INTERFACE", CURLOPT_INTERFACE, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLOPT_KRB4LEVEL", CURLOPT_KRB4LEVEL, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLOPT_LOW_SPEED_LIMIT", CURLOPT_LOW_SPEED_LIMIT, CONST_PERSISTENT);
diff --git a/ext/curl/interface.c b/ext/curl/interface.c
index aebb336378bc0..8458cd77dabd2 100644
--- a/ext/curl/interface.c
+++ b/ext/curl/interface.c
@@ -2244,6 +2244,7 @@ static zend_result _php_curl_setopt(php_curl *ch, zend_long option, zval *zvalue
 			break;
 
 		/* Curl off_t options */
+		case CURLOPT_INFILESIZE_LARGE:
 		case CURLOPT_MAX_RECV_SPEED_LARGE:
 		case CURLOPT_MAX_SEND_SPEED_LARGE:
 		case CURLOPT_MAXFILESIZE_LARGE:
diff --git a/ext/curl/tests/Caddyfile b/ext/curl/tests/Caddyfile
index 30686f0bb9fa2..67b82434ba4c6 100644
--- a/ext/curl/tests/Caddyfile
+++ b/ext/curl/tests/Caddyfile
@@ -12,6 +12,11 @@ respond /serverpush "main response"
 respond /serverpush/pushed "pushed response"
 push /serverpush /serverpush/pushed
 
+route /show_upload_size {
+    templates
+    respond `Content-length: ={{.Req.Header.Get "Content-length"}}=`
+}
+
 basic_auth /http-basic-auth {
 	# bcrypt password hash for "password", calculated with 'caddy hash-password'
 	user $2a$14$yUKl9SGqVTAAqPTzLup.DefsbXXx3kfreNnzpJOUHcIrKnr5lgef2
diff --git a/ext/curl/tests/curl_setopt_CURLOPT_INFILESIZE_LARGE.phpt b/ext/curl/tests/curl_setopt_CURLOPT_INFILESIZE_LARGE.phpt
new file mode 100644
index 0000000000000..5063958412b5a
--- /dev/null
+++ b/ext/curl/tests/curl_setopt_CURLOPT_INFILESIZE_LARGE.phpt
@@ -0,0 +1,58 @@
+--TEST--
+Curl option CURLOPT_INFILESIZE_LARGE
+--EXTENSIONS--
+curl
+--SKIPIF--
+<?php
+include 'skipif-nocaddy.inc';
+?>
+--FILE--
+<?php
+$ch = curl_init("https://localhost/show_upload_size");
+$f = fopen(__FILE__,"r");
+var_dump(curl_setopt_array($ch, [
+    CURLOPT_RETURNTRANSFER => true,
+    CURLOPT_UPLOAD => true,
+    CURLOPT_INFILE => $f,
+    CURLOPT_INFILESIZE => filesize(__FILE__),
+    CURLOPT_CONNECTTIMEOUT => 3,
+    CURLOPT_TIMEOUT => 3,
+    CURLOPT_SSL_VERIFYHOST => 0,
+    CURLOPT_SSL_VERIFYPEER => 0,
+]));
+
+var_dump(curl_exec($ch));
+
+var_dump(curl_setopt($ch, CURLOPT_INFILESIZE, -1));
+var_dump(curl_exec($ch));
+
+var_dump(curl_setopt($ch, CURLOPT_INFILESIZE_LARGE, -1));
+var_dump(curl_exec($ch));
+
+rewind($f);
+var_dump(curl_setopt($ch, CURLOPT_INFILESIZE, filesize(__FILE__)));
+var_dump(curl_exec($ch));
+var_dump(curl_setopt($ch, CURLOPT_INFILESIZE_LARGE, -1));
+var_dump(curl_exec($ch));
+
+rewind($f);
+var_dump(curl_setopt($ch, CURLOPT_INFILESIZE_LARGE, filesize(__FILE__)));
+var_dump(curl_exec($ch));
+
+var_dump(curl_error($ch));
+
+?>
+--EXPECTF--
+bool(true)
+string(21) "Content-length: =%d="
+bool(true)
+string(18) "Content-length: =="
+bool(true)
+string(18) "Content-length: =="
+bool(true)
+string(21) "Content-length: =%d="
+bool(true)
+string(18) "Content-length: =="
+bool(true)
+string(21) "Content-length: =%d="
+string(0) ""