TI-2026-24520 CVE-2026-31976 · GHSA-f8q5-h5qh-33mhxygeni-action v5 tag poisoned with C2 backdoorPriority MEDIUM 49xygeni-action is the GitHub Action for Xygeni Scanner.CVSS 4.0CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.00576 · Published 2026-03-11 · Fixed in 6.4.0 CWE-506