From 9e9f617a83f6593b476669030b0347d48e831c3f Mon Sep 17 00:00:00 2001
From: Narpat Mali <narpat.mali@windriver.com>
Date: Mon, 9 Jan 2023 14:45:05 +0000
Subject: [PATCH] Limit the amount of whitespace to search/backtrack. Fixes
 #3659.

CVE: CVE-2022-40897

Upstream-Status: Backport [https://github.com/pypa/setuptools/commit/43a9c9bfa6aa626ec2a22540bea28d2ca77964be]

Signed-off-by: Narpat Mali <narpat.mali@windriver.com>
---
 setuptools/package_index.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/setuptools/package_index.py b/setuptools/package_index.py
index 270e7f3..e93fcc6 100644
--- a/setuptools/package_index.py
+++ b/setuptools/package_index.py
@@ -197,7 +197,7 @@ def unique_values(func):
     return wrapper
 
 
-REL = re.compile(r"""<([^>]*\srel\s*=\s*['"]?([^'">]+)[^>]*)>""", re.I)
+REL = re.compile(r"""<([^>]*\srel\s{0,10}=\s{0,10}['"]?([^'" >]+)[^>]*)>""", re.I)
 # this line is here to fix emacs' cruddy broken syntax highlighting
 
 
-- 
2.34.1

