https://github.com/python/cpython/commit/9bc5bc56182afba8bfc020f692ba5a00aac9539e
commit: 9bc5bc56182afba8bfc020f692ba5a00aac9539e
branch: 3.14
author: Miss Islington (bot) <[email protected]>
committer: gpshead <[email protected]>
date: 2026-04-05T18:13:29Z
summary:

[3.14] gh-94632: document the subprocess need for extra_groups=() with user= 
(GH-148129) (#148130)

gh-94632: document the subprocess need for extra_groups=() with user= 
(GH-148129)
(cherry picked from commit a1cf4430ed89ec702528ef074138c407ccf89946)

Co-authored-by: Gregory P. Smith <[email protected]>

files:
M Doc/library/subprocess.rst

diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
index 82e41bff87976d..66a3d6a484a8a8 100644
--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -630,6 +630,12 @@ functions.
    the value in ``pw_uid`` will be used. If the value is an integer, it will
    be passed verbatim. (POSIX only)
 
+   .. note::
+
+      Specifying *user* will not drop existing supplementary group memberships!
+      The caller must also pass ``extra_groups=()`` to reduce the group 
membership
+      of the child process for security purposes.
+
    .. availability:: POSIX
    .. versionadded:: 3.9
 

_______________________________________________
Python-checkins mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3//lists/python-checkins.python.org
Member address: [email protected]

Reply via email to