CVE-2026-48127 frappe CVE debrief

Who should care

Users of Frappe framework, especially those who have not updated to the latest versions, should be aware of this vulnerability. This issue may impact users who rely on Frappe's file-handling API endpoints for sensitive operations. Operators, platform administrators, vulnerability management teams, and security teams should review the official advisory and CVE record to validate affected scope and severity.

Technical summary

The vulnerability in Frappe's file-handling API endpoints, such as add_attachments, allows users without write access to attach files to any doctype. This issue arises from insufficient access control checks in the API endpoints. The vulnerability has been addressed in Frappe versions 16.20.0 and 15.110.0. It is recommended to update to one of these versions to prevent exploitation. Affected product deployments should be identified and reviewed for exposure. Compensating controls, such as restricting access to file-handling API endpoints and monitoring for suspicious file attachment activities, can help mitigate the risk.

Defensive priority

Medium priority should be given to updating Frappe to versions 16.20.0 or 15.110.0, as the vulnerability allows unauthorized file attachments. Monitoring for suspicious file attachment activities and restricting access to file-handling API endpoints can also help mitigate the risk. Implementing compensating controls for exposed systems and tracking exceptions can further reduce the risk of exploitation.

Recommended defensive actions

• Update Frappe to version 16.20.0 or 15.110.0
• Restrict access to file-handling API endpoints
• Monitor for suspicious file attachment activities
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-10T22:16:42.140Z and has not been modified since then. The NVD entry is currently being reviewed. Evidence limits suggest that further verification is needed to confirm affected scope and severity. Defenders should verify the official advisory and CVE record for accurate information.

Official resources