A wpa_supplicant security update has been released for CentOS 7.

CESA-2021:0808 Important CentOS 7 wpa_supplicant Security Update

CentOS Errata and Security Advisory 2021:0808 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2021:0808

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

x86_64:
274694000767f81dd075fa9b55a09e5e143824fe75c13fb69a510889a95f7f25 wpa_supplicant-2.6-12.el7_9.2.x86_64.rpm

Source:
b261ffacff431bd6616224f98faed8eff963aae0e8a3232c5454ce41cfc4d77b wpa_supplicant-2.6-12.el7_9.2.src.rpm