Supported File Types

The following file types and extensions are currently supported in Glasswall Halo. 

Learn more about Glasswall CDR.

If you don't see your desired file extension below, please let us know.

Glasswall offers two levels of CDR for our supported file types.

Comprehensive CDR

Glasswall extrapolates the file to its granular levels, then inspects and validates every component, their relationships, and their attributes in accordance with the file vendor specification.

Learn more about content management & policy definitions. 

Standard CDR

Glasswall extrapolates the file at a high level (e.g., container level), then validates these components against a subset of selected rules from the file vendor specification. For example, Glasswall may validate attributes of a container and ensure that the streams are of the correct size, running order, and encoding in relation to the container metadata. However, the contents of these streams are not further inspected, validated, or cleansed.

Note: Binary executable files should be used with caution; the use of additional security filters is highly recommended. Binary files are processed as per the standard processing level but binary files may still be risky in nature.

Zip & Archive Support

For the Embedded Engine SDK, we recommend that integrators explode archives before presenting files for CDR processing.

Glasswall Halo provides archive support. Archive formats and file types are first identified using a structural check and then decompressed. 

Depending on the format of extracted file types, the contents of the archive are processed and a brand-new archive with the secured content is created.

Glasswall Halo provides REST API endpoints that that can accept both single and archive files. 

This overview describes how the Glasswall Halo solution provides a configurable ruleset for how archives are processed.

XML Validation Support

Glasswall validates your XML file by ensuring its markup is secure, well-formed, and adheres to the specified schema. It prohibits DTDs, validates exclusively against the provided .xsd schema, and enforces policy-driven mitigations like blocking risky tags and restricting encodings.

Learn more about XML Validation and XML Policies

Supported File Size

Glasswall provides 64-bit version of a Dynamic-link Libraries (.DLL) for Windows and/or Shared Objects (.SO) for Linux operating systems that can analyse and protect files up to the size of 2GiB (2,147,483,648 bytes), provided that other internal limits (such as recursion depth) are satisfied.

Learn more

• Glasswall CDR FAQs
• File type specifications