Issue Uploading Large ZIP File in Incident Form – MIME Type and Size Limit Error

[Sirri]

Hi All,

I'm encountering an issue while trying to upload a ZIP file (size: 1.26 GB) to the Incident form in our ServiceNow instance.

When I attempt the upload, I receive the following popup error:

"The MIME type, file extension, or file type could be invalid or unsupported. Please contact your administrator for assistance."

After clicking "OK", I also see:

"Attachment size exceeds the limit of 1,024MB."

To address this, I have already updated the following system properties:

1. com.glide.attachment.max_size → 2047
2. glide.attachment.extensions →
   xls,xlsx,doc,docx,pdf,jpg,png,bmp,csv,txt,msg,jpeg,gif,log,keystore,zip,cert,jks,ppt,pem,mp4,mp3,xml,mib,VBS,vbs,eml,html,csr,iso

Despite these changes, the error persists. Has anyone faced a similar issue or know if there are additional configurations (ACLs, MIME type validation, etc.) that need to be adjusted?

Any guidance would be appreciated!

[Rafael Batistot]

Hi @Sirri 

You can disable this security upload-stop feature by editing the system property 'glide.security.file.mime_type.validation' and setting its Value to 'false'.

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0998558

[Sirri]

@Rafael Batistot 

Thank you for your response.

I have update this property "glide.security.file.mime_type.validation" to false.

Still I'm getting same error " The MIME type, file extension, or file type could be invalid or unsupported. Please contact your administrator for assistance." as popup once I click on ok I'm getting this Info message "Attachment size exceeds the limit of 1,024MB"  Please check below snips for your reference.

[Simon Hendery]

Is there a business case for allowing this? On the face of it you seem to be opening the door to security and performance issues, plus ServiceNow charges a lot extra for storage after you hit 4TB, from memory.