diff --git a/CVE-2024-37891.patch b/CVE-2024-37891.patch
new file mode 100644
index 0000000..d6b4fa3
--- /dev/null
+++ b/CVE-2024-37891.patch
@@ -0,0 +1,66 @@
+From b2a4f7903eff44b8151ab5001198dddc7c429c72 Mon Sep 17 00:00:00 2001
+From: Quentin Pradet <quentin.pradet@gmail.com>
+Date: Wed, 25 Sep 2024 12:58:55 +0200
+Subject: [PATCH] Merge pull request from GHSA-34jh-p97f-mpxf
+
+* [1.26] Strip Proxy-Authorization header on redirects
+
+* Set release date
+---
+ src/urllib3/util/retry.py     | 4 +++-
+ test/test_retry.py            | 6 +++++-
+ test/test_retry_deprecated.py | 6 +++++-
+ 3 files changed, 13 insertions(+), 3 deletions(-)
+
+diff --git a/src/urllib3/util/retry.py b/src/urllib3/util/retry.py
+index f727602..4a6eb0d 100644
+--- a/src/urllib3/util/retry.py
++++ b/src/urllib3/util/retry.py
+@@ -235,7 +235,9 @@ class Retry(object):
+     RETRY_AFTER_STATUS_CODES = frozenset([413, 429, 503])
+ 
+     #: Default headers to be used for ``remove_headers_on_redirect``
+-    DEFAULT_REMOVE_HEADERS_ON_REDIRECT = frozenset(["Cookie", "Authorization"])
++    DEFAULT_REMOVE_HEADERS_ON_REDIRECT = frozenset(
++        ["Cookie", "Authorization", "Proxy-Authorization"]
++    )
+ 
+     #: Maximum backoff time.
+     DEFAULT_BACKOFF_MAX = 120
+diff --git a/test/test_retry.py b/test/test_retry.py
+index d7c216b..b23c7d1 100644
+--- a/test/test_retry.py
++++ b/test/test_retry.py
+@@ -293,7 +293,11 @@ class TestRetry(object):
+     def test_retry_default_remove_headers_on_redirect(self):
+         retry = Retry()
+ 
+-        assert retry.remove_headers_on_redirect == {"authorization", "cookie"}
++        assert retry.remove_headers_on_redirect == {
++            "authorization",
++            "proxy-authorization",
++            "cookie",
++        }
+ 
+     def test_retry_set_remove_headers_on_redirect(self):
+         retry = Retry(remove_headers_on_redirect=["X-API-Secret"])
+diff --git a/test/test_retry_deprecated.py b/test/test_retry_deprecated.py
+index d7905cd..0d22b0a 100644
+--- a/test/test_retry_deprecated.py
++++ b/test/test_retry_deprecated.py
+@@ -295,7 +295,11 @@ class TestRetry(object):
+     def test_retry_default_remove_headers_on_redirect(self):
+         retry = Retry()
+ 
+-        assert retry.remove_headers_on_redirect == {"authorization", "cookie"}
++        assert retry.remove_headers_on_redirect == {
++            "authorization",
++            "proxy-authorization",
++            "cookie",
++        }
+ 
+     def test_retry_set_remove_headers_on_redirect(self):
+         retry = Retry(remove_headers_on_redirect=["X-API-Secret"])
+-- 
+2.46.0
+
diff --git a/python3.11-urllib3.spec b/python3.11-urllib3.spec
index 82941f3..dc71152 100644
--- a/python3.11-urllib3.spec
+++ b/python3.11-urllib3.spec
@@ -8,7 +8,7 @@
 
 Name:           python%{python3_pkgversion}-%{srcname}
 Version:        1.26.12
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Python HTTP library with thread-safe connection pooling and file post
 
 License:        MIT
@@ -26,6 +26,12 @@ BuildArch:      noarch
 # Upstream fix: https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb
 Patch1: CVE-2023-43804.patch
 
+# CVE-2024-37891
+# Proxy-authorization request header is not stripped during cross-origin redirects.
+# Tracking bug: https://issues.redhat.com/browse/RHEL-43172
+# Upstream fix: https://github.com/urllib3/urllib3/commit/40b6d1605814dd1db0a46e202d6e56f2e4c9a468
+Patch2: CVE-2024-37891.patch
+
 BuildRequires:  python%{python3_pkgversion}-devel
 BuildRequires:  python%{python3_pkgversion}-rpm-macros
 BuildRequires:  python%{python3_pkgversion}-setuptools
@@ -120,6 +126,10 @@ ln -s %{python3_sitelib}/__pycache__/six.cpython-%{python3_version_nodots}.pyc \
 
 
 %changelog
+* Wed Sep 25 2024 Lumír Balhar <lbalhar@redhat.com> - 1.26.12-3
+- Security fix for CVE-2024-37891
+Resolves: RHEL-59991
+
 * Fri Oct 13 2023 Lumír Balhar <lbalhar@redhat.com> - 1.26.12-2
 - Security fix for CVE-2023-43804
 Resolves: RHEL-12003