Day: May 1, 2026 - RH-ISAC Blog

Executive Summary  On 20 April 2026 Wiz Research uncovered a critical vulnerability (CVE-2026-3854) in GitHub’s internal git infrastructure affecting both GitHub.com and GitHub Enterprise Server. By exploiting an injection flaw in GitHub’s internal protocol, any authenticated user could execute arbitrary commands on GitHub’s backend servers with a single git push command – using nothing but a standard git client.   Affected…

Executive Summary According to a report from Xint published on 29 April 2026, a Linux kernel vulnerability named “Copy Fail” has affected multiple major Linux distributions released since 2017. The flaw, designated CVE-2026-31431, allows a local, unprivileged user to escalate privileges to root by exploiting improper handling of data copying within the kernel. The vulnerability enables potential threat actors…