diff --git a/ext/curl/curl.stub.php b/ext/curl/curl.stub.php
index 9eb8bd5b49e87..c9abe237339b5 100644
--- a/ext/curl/curl.stub.php
+++ b/ext/curl/curl.stub.php
@@ -1000,6 +1000,18 @@
  */
 const CURLINFO_CAINFO = UNKNOWN;
 #endif
+#if LIBCURL_VERSION_NUM >= 0x080c00 /* Available since 8.12.0 */
+/**
+ * @var int
+ * @cvalue CURLINFO_HTTPAUTH_USED
+ */
+const CURLINFO_HTTPAUTH_USED = UNKNOWN;
+/**
+ * @var int
+ * @cvalue CURLINFO_PROXYAUTH_USED
+ */
+const CURLINFO_PROXYAUTH_USED = UNKNOWN;
+#endif
 
 /* Other */
 /**
@@ -3054,6 +3066,13 @@
  * @cvalue CURLINFO_TOTAL_TIME_T
  */
 const CURLINFO_TOTAL_TIME_T = UNKNOWN;
+#if LIBCURL_VERSION_NUM >= 0x080700 /* Available since 8.7.0 */
+/**
+ * @var int
+ * @cvalue CURLINFO_USED_PROXY
+ */
+const CURLINFO_USED_PROXY = UNKNOWN;
+#endif
 #if LIBCURL_VERSION_NUM >= 0x080a00 /* Available since 8.10.0 */
 /**
  * @var int
diff --git a/ext/curl/curl_arginfo.h b/ext/curl/curl_arginfo.h
index e873e9e9f3277..6a81d1e92c88f 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: 7d3cd96f8725c59be46817487bb8d06e04384269 */
+ * Stub hash: 48fc95503f4f8cc96575ff6f31fdd1e4cdc5969e */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_curl_close, 0, 1, IS_VOID, 0)
 	ZEND_ARG_OBJ_INFO(0, handle, CurlHandle, 0)
@@ -429,6 +429,12 @@ static void register_curl_symbols(int module_number)
 #endif
 #if LIBCURL_VERSION_NUM >= 0x075400 /* Available since 7.84.0 */
 	REGISTER_LONG_CONSTANT("CURLINFO_CAINFO", CURLINFO_CAINFO, CONST_PERSISTENT);
+#endif
+#if LIBCURL_VERSION_NUM >= 0x080c00 /* Available since 8.12.0 */
+	REGISTER_LONG_CONSTANT("CURLINFO_HTTPAUTH_USED", CURLINFO_HTTPAUTH_USED, CONST_PERSISTENT);
+#endif
+#if LIBCURL_VERSION_NUM >= 0x080c00 /* Available since 8.12.0 */
+	REGISTER_LONG_CONSTANT("CURLINFO_PROXYAUTH_USED", CURLINFO_PROXYAUTH_USED, CONST_PERSISTENT);
 #endif
 	REGISTER_LONG_CONSTANT("CURLMSG_DONE", CURLMSG_DONE, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLVERSION_NOW", CURLVERSION_NOW, CONST_PERSISTENT);
@@ -811,6 +817,9 @@ static void register_curl_symbols(int module_number)
 	REGISTER_LONG_CONSTANT("CURLINFO_REDIRECT_TIME_T", CURLINFO_REDIRECT_TIME_T, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLINFO_STARTTRANSFER_TIME_T", CURLINFO_STARTTRANSFER_TIME_T, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("CURLINFO_TOTAL_TIME_T", CURLINFO_TOTAL_TIME_T, CONST_PERSISTENT);
+#if LIBCURL_VERSION_NUM >= 0x080700 /* Available since 8.7.0 */
+	REGISTER_LONG_CONSTANT("CURLINFO_USED_PROXY", CURLINFO_USED_PROXY, CONST_PERSISTENT);
+#endif
 #if LIBCURL_VERSION_NUM >= 0x080a00 /* Available since 8.10.0 */
 	REGISTER_LONG_CONSTANT("CURLINFO_POSTTRANSFER_TIME_T", CURLINFO_POSTTRANSFER_TIME_T, CONST_PERSISTENT);
 #endif
diff --git a/ext/curl/interface.c b/ext/curl/interface.c
index 690f2ccc609c9..311b2f7cc8a59 100644
--- a/ext/curl/interface.c
+++ b/ext/curl/interface.c
@@ -2662,6 +2662,19 @@ PHP_FUNCTION(curl_getinfo)
 		if (curl_easy_getinfo(ch->cp, CURLINFO_CAINFO, &s_code) == CURLE_OK) {
 			CAAS("cainfo", s_code);
 		}
+#endif
+#if LIBCURL_VERSION_NUM >= 0x080700 /* Available since 8.7.0 */
+		if (curl_easy_getinfo(ch->cp, CURLINFO_USED_PROXY, &l_code) == CURLE_OK) {
+			CAAL("used_proxy", l_code);
+		}
+#endif
+#if LIBCURL_VERSION_NUM >= 0x080c00 /* Available since 8.12.0 */
+		if (curl_easy_getinfo(ch->cp, CURLINFO_HTTPAUTH_USED, &l_code) == CURLE_OK) {
+			CAAL("httpauth_used", l_code);
+		}
+		if (curl_easy_getinfo(ch->cp, CURLINFO_PROXYAUTH_USED, &l_code) == CURLE_OK) {
+			CAAL("proxyauth_used", l_code);
+		}
 #endif
 	} else {
 		switch (option) {
diff --git a/ext/curl/tests/Caddyfile b/ext/curl/tests/Caddyfile
index 28deb40926fc0..1c9432bdb0ba2 100644
--- a/ext/curl/tests/Caddyfile
+++ b/ext/curl/tests/Caddyfile
@@ -11,3 +11,8 @@ respond / "Caddy is up and running"
 respond /serverpush "main response"
 respond /serverpush/pushed "pushed response"
 push /serverpush /serverpush/pushed
+
+basicauth /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_getinfo_CURLINFO_HTTPAUTH_USED-caddy.phpt b/ext/curl/tests/curl_getinfo_CURLINFO_HTTPAUTH_USED-caddy.phpt
new file mode 100644
index 0000000000000..91e1b8d6151f4
--- /dev/null
+++ b/ext/curl/tests/curl_getinfo_CURLINFO_HTTPAUTH_USED-caddy.phpt
@@ -0,0 +1,33 @@
+--TEST--
+curl_getinfo - CURLINFO_HTTPAUTH_USED - online test
+--EXTENSIONS--
+curl
+--SKIPIF--
+<?php
+$curl_version = curl_version();
+if ($curl_version['version_number'] < 0x080c00) die("skip: test works only with curl >= 8.12.0");
+include 'skipif-nocaddy.inc';
+?>
+--FILE--
+<?php
+
+$ch = curl_init();
+curl_setopt($ch, CURLOPT_URL, "https://localhost/http-basic-auth");
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+
+$info = curl_getinfo($ch);
+var_dump($info['httpauth_used'] === 0); // this is always 0 before executing the transfer
+
+curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC | CURLAUTH_DIGEST);
+curl_setopt($ch, CURLOPT_USERNAME, "foo");
+curl_setopt($ch, CURLOPT_PASSWORD, "bar");
+
+$result = curl_exec($ch);
+$info = curl_getinfo($ch);
+
+var_dump($info['httpauth_used'] === CURLAUTH_BASIC);
+
+?>
+--EXPECT--
+bool(true)
+bool(true)
diff --git a/ext/curl/tests/curl_getinfo_CURLINFO_HTTPAUTH_USED.phpt b/ext/curl/tests/curl_getinfo_CURLINFO_HTTPAUTH_USED.phpt
new file mode 100644
index 0000000000000..ea004d3dc9eb4
--- /dev/null
+++ b/ext/curl/tests/curl_getinfo_CURLINFO_HTTPAUTH_USED.phpt
@@ -0,0 +1,66 @@
+--TEST--
+curl_getinfo - CURLINFO_HTTPAUTH_USED
+--EXTENSIONS--
+curl
+--SKIPIF--
+<?php
+$curl_version = curl_version();
+if ($curl_version['version_number'] < 0x080c00) die("skip: test works only with curl >= 8.12.0");
+?>
+--FILE--
+<?php
+include 'server.inc';
+
+$host = curl_cli_server_start();
+$port = (int) (explode(':', $host))[1];
+
+$ch = curl_init();
+curl_setopt($ch, CURLOPT_URL, "{$host}/get.inc?test=file");
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+
+echo "httpauth_used and proxyauth_used empty\n";
+
+$info = curl_getinfo($ch);
+var_dump(isset($info['httpauth_used']));
+var_dump(isset($info['proxyauth_used']));
+var_dump($info['httpauth_used'] === 0); // this is always 0 before executing the transfer
+var_dump($info['proxyauth_used'] === 0); // this is always 0 before executing the transfer
+
+$result = curl_exec($ch);
+echo "httpauth_used and proxyauth_used empty after request\n";
+$info = curl_getinfo($ch);
+var_dump(isset($info['httpauth_used']));
+var_dump(isset($info['proxyauth_used']));
+var_dump($info['httpauth_used'] === 0);
+var_dump($info['proxyauth_used'] === 0);
+var_dump(curl_getinfo($ch, CURLINFO_HTTPAUTH_USED) === $info['used_proxy']);
+var_dump(curl_getinfo($ch, CURLINFO_PROXYAUTH_USED) === $info['proxyauth_used']);
+
+echo "httpauth_used set after request\n";
+
+$ch = curl_init();
+curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC | CURLAUTH_DIGEST);
+curl_setopt($ch, CURLOPT_USERNAME, "foo");
+curl_setopt($ch, CURLOPT_PASSWORD, "bar");
+
+$result = curl_exec($ch);
+$info = curl_getinfo($ch);
+
+var_dump($info['httpauth_used']); // Built-in server does not support auth
+
+?>
+--EXPECT--
+httpauth_used and proxyauth_used empty
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+httpauth_used and proxyauth_used empty after request
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+httpauth_used set after request
+int(0)
diff --git a/ext/curl/tests/curl_getinfo_CURLINFO_USED_PROXY.phpt b/ext/curl/tests/curl_getinfo_CURLINFO_USED_PROXY.phpt
new file mode 100644
index 0000000000000..7020a70f5247d
--- /dev/null
+++ b/ext/curl/tests/curl_getinfo_CURLINFO_USED_PROXY.phpt
@@ -0,0 +1,38 @@
+--TEST--
+curl_getinfo - CURLINFO_USED_PROXY
+--EXTENSIONS--
+curl
+--SKIPIF--
+<?php
+$curl_version = curl_version();
+if ($curl_version['version_number'] < 0x080700) die("skip: test works only with curl >= 8.7.0");
+?>
+--FILE--
+<?php
+include 'server.inc';
+
+$host = curl_cli_server_start();
+$port = (int) (explode(':', $host))[1];
+
+$ch = curl_init();
+curl_setopt($ch, CURLOPT_URL, "{$host}/get.inc?test=file");
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+
+$info = curl_getinfo($ch);
+var_dump(isset($info['used_proxy']));
+var_dump($info['used_proxy'] === 0); // this is always 0 before executing the transfer
+
+$result = curl_exec($ch);
+
+$info = curl_getinfo($ch);
+var_dump(isset($info['used_proxy']));
+var_dump($info['used_proxy'] === 0);
+var_dump(curl_getinfo($ch, CURLINFO_USED_PROXY) === $info['used_proxy']);
+
+?>
+--EXPECT--
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)