If you use 7-Zip, update it as soon as possible, A newly disclosed security flaw could let attackers run malicious code on your PC if you open a specially crafted XZ archive.
The vulnerability, tracked as CVE-2026-14266, has been fixed in 7-Zip version 26.02.
7-Zip does not update automatically, so manually download and install the latest version if you are using an older release.