CVE-2026-62315 frappe CVE debrief

Who should care

Defenders responsible for Frappe installations, especially in environments with multiple authenticated users, should assess exposure and prioritize remediation. This includes reviewing the current Frappe version, restricting access to the client endpoint, and monitoring for suspicious activity. Defenders should also verify and remediate this vulnerability to prevent potential unauthorized data modification and privilege escalation.

Why it matters

CVE-2026-62315 is a high-severity vulnerability in Frappe that allows authenticated users to mass-assign protected fields, potentially leading to unauthorized data modification and privilege escalation. Defenders should prioritize verifying and remediating this vulnerability in Frappe installations, especially in environments with multiple authenticated users.

• Potential for unauthorized data modification
• Risk of privilege escalation for authenticated users
• Need for verification of Frappe version and configuration
• Potential for data integrity issues if not properly mitigated

Technical summary

The frappe.client.set_value function in Frappe version 16.31.0 and earlier checks a dictionary supplied through the fieldname parameter against forbidden standard and child-table fields before parsing the dictionary into individual field names. This allows an authenticated caller to exploit the type confusion and mass-assign protected fields through the client endpoint. The vulnerability could lead to unauthorized data modification and potential privilege escalation. No released fixed version is available as of this review.

Defensive priority

Defenders should prioritize verifying and remediating this vulnerability in Frappe installations, especially in environments with multiple authenticated users.

Recommended defensive actions

• Verify Frappe installations for version 16.31.0 or earlier and assess exposure
• Restrict access to the client endpoint for authenticated users
• Monitor for suspicious activity related to the frappe.client.set_value function
• 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 and NVD entry provide details on the vulnerability, but no additional information on exploitation or impact is available. Defenders should verify Frappe installations for version 16.31.0 or earlier and assess exposure. The vulnerability allows an authenticated caller to mass-assign protected fields through the client endpoint due to type confusion in the frappe.client.set_value function. No released fixed version is available as of this review. Evidence is limited to CVE and NVD details.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.