Property reference

`glide.attachment.blacklisted.extensions`

The glide.attachment.blacklisted.extensions property specifies file extensions that are not allowed for attachments. Admins should review this setting to ensure compliance with security policies and to prevent the upload of potentially harmful files.

Default: Not stated
Type: Not stated
Application: Not stated

Key questions about this property

The answers below summarize the purpose, scope, default effect, and review scenarios for this property.

What does it do?	This property defines a list of file extensions that are prohibited for attachments in the system, impacting attachment security and management.
What area does it affect?	Attachment management
What does the default mean?	No default value is stated in the ServiceNow documentation.
When should you review it?	Review this property when configuring attachment security settings or during security audits.

Property record

Facts stated in the ServiceNow documentation. No out of the box record has been read from an instance yet.

Property name	`glide.attachment.blacklisted.extensions`
Type	Not stated
Application	Not stated
Default value	Not stated
Description	Not stated

Sources

Official references and nearby text excerpts where this property appears.

Brazil docs View supporting context

Context preview Snippet 1

... must be met to perform Git operations: • If the glide.attachment.extensions system property is configured, it must contain txt,gitdata. • If the glide.security.attachment_type.use_blacklist system property is set to true: ◦The glide.attachment.blacklisted.extensions system property must not contain txt,gitdata and ◦The glide.attachment.blacklisted.types system property must not contain text/plain,application/octet-stream. If you want to use custom extensions for attachments, set the sn_glider.git.attachment.extension.text and sn_glider.git.attachment.extension.binary properties ...

More in `glide.attachment`

Other properties in the same namespace.

glide.attachment.blacklisted.types This property defines a list of MIME types that are not allowed as attachments, helping to prevent the upload glide.attachment.enable_secure_filename_validation This property, when enabled, ensures that file names are fully sanitized and that unsafe patterns are rejected glide.attachment.enforce_security_validation It enforces validation of file MIME types during uploads to ensure that only files with correct extensions are glide.attachment.extensions This property defines a comma-separated list of allowable file extensions for document attachments, excluding glide.attachment.role This property defines a comma-separated list of roles that can create attachments, impacting user permissions glide.attachment.trusted_system_extensions It specifies which non-executable file extensions are permitted for backend attachments, overriding standard v

All 7 properties in glide.attachment →