
GreatXML Bypass Unlocks BitLocker via WinRE XML Files
Security researcher Chaotic Eclipse unveiled GreatXML, a new Windows BitLocker bypass that places crafted unattend.xml and Recovery/WindowsRE/ReAgent.xml on the recovery partition and, after rebooting into WinRE, spawns a shell with unrestricted access to the BitLocker volume. It builds on a recent Defender-related exploit and is the second BitLocker bypass from the researcher, with Microsoft having patched a prior bypass (YellowKey CVE-2026-45585) this Patch Tuesday.