Docker Sandboxes bug let a coding agent read host files via sbx cp symlinks; fixed in 0.51.0
Published Nov 3, Endor Labs found that CVE-2026-103916 let an agent plant a workspace symlink so a later sbx cp read or overwrote host files such as cloud credentials or SSH keys. Upgrade Docker Sandboxes to 0.51.0 or later, since the first fix in 0.48.0 was incomplete.