CVE-2026-73509: Improper Limitation of a Pathname to a Restricted Directory

OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batchrename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPathreq.SrcDir and validates renameObject.NewName with checkRelativePath, but does not...