diff --git a/Pkgs/rife-ncnn-vs/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py b/Pkgs/rife-ncnn-vs/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py
index d66d8566..8b6d9a0b 100644
--- a/Pkgs/rife-ncnn-vs/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py
+++ b/Pkgs/rife-ncnn-vs/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py
@@ -1426,6 +1426,8 @@ def _proc_pax(self, tarfile):
 
             length, keyword = match.groups()
             length = int(length)
+            if length == 0:
+                raise InvalidHeaderError("invalid header")
             value = buf[match.end(2) + 1:match.start(1) + length - 1]
 
             # Normally, we could just use "utf8" as the encoding and "strict"