A python3 security update for CentOS 7 has been released.

[CentOS-announce] CESA-2023:3556 Important CentOS 7 python3 Security Update

CentOS Errata and Security Advisory 2023:3556 Important

Upstream details at : https://access.redhat.com/errata/RHSA-2023:3556

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
577ce44c27214c84f76d58a38be32a4a5f165af65c0e77afa334270e98b8008d python3-3.6.8-19.el7_9.i686.rpm
a5d07ef113639a1ab8da7c6d2429a8232e1a1dd44504eef67d44e146ca863729 python3-3.6.8-19.el7_9.x86_64.rpm
25afe9864fffab25d5ffab54abb193c47e76f577fe26ccdeeff50269d7b964cc python3-debug-3.6.8-19.el7_9.i686.rpm
9006d58c6ebd992f1413230a4531d1584921f01326a875a717363abde71d6b03 python3-debug-3.6.8-19.el7_9.x86_64.rpm
0d3c2c589c5e9e3f8ffbf1a3ecab65c4237f0445ab4f8f1840daac3a9bde8e16 python3-devel-3.6.8-19.el7_9.i686.rpm
e14abc4dfd161e931b9099dce439db26a29175c166b124a14167a664a0d5a600 python3-devel-3.6.8-19.el7_9.x86_64.rpm
c0ba90dceb83ffcdd8192f4e130a324c73ac021f2a9b2ccdc98d58cdf26f727b python3-idle-3.6.8-19.el7_9.i686.rpm
f53d0c4b2718fb2cccc1cce0666cef6323bd6fdb7b789f34a3fa3a744c3892ec python3-idle-3.6.8-19.el7_9.x86_64.rpm
5562431c48cab67aa1da614c3d19c3f6becfbc386d29c7133f40bcd4ec21c3dc python3-libs-3.6.8-19.el7_9.i686.rpm
92d8d566c14d02ab87f59d48e5f011678c4d1ad1effce954445cfff6e2186ac9 python3-libs-3.6.8-19.el7_9.x86_64.rpm
44eb1405754fcd4ae144cb5025d91b3ac8759293ff1a0f187ca3a1e153137223 python3-test-3.6.8-19.el7_9.i686.rpm
c9e8e27be0763433d2342ad0573164a56176f17826d8830f39d0e08518d54127 python3-test-3.6.8-19.el7_9.x86_64.rpm
e6273ad14c1f319502c24fe2004a6765421589ad83742d12e87a81b3c84c6d08 python3-tkinter-3.6.8-19.el7_9.i686.rpm
5ca0ccb7e4af7c807c1f99c10409892524195addd4cfc1d830e5cc351643409f python3-tkinter-3.6.8-19.el7_9.x86_64.rpm

Source:
990ddbd496dc4e8f69a5355d7acb3f3545d45195f321511b6a580511aa967d70 python3-3.6.8-19.el7_9.src.rpm