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TI-2026-71434 Aliases CVE-2026-109675GHSA-8q8g-5ghh-6f67

Broken access control in Frappe Suite mail mailbox and quota APIs

Priority LOW 23CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Frappe Suite before commit 2697564a9c46da6acc614743eaf9915fe5238f4f contains a broken access control flaw in the get_mailboxes and get_quota APIs. An authenticated mail user who supplies another user's JMAP account ID can read that user's mailbox names, message counts, automation rules with sender addresses, and storage quota usage. The flaw is an authorization bypass through a user-controlled key (CWE-639).

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Frappe Suite before commit 2697564a9c46da6acc614743eaf9915fe5238f4f contains a broken access control vulnerability in the get_mailboxes and get_quota APIs that allows authenticated mail users to access other users' data. Attackers can supply another user's JMAP account ID to read mailbox names, message counts, automation rules with sender addresses, and storage quota usage.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

No affected products listed by the sources yet.

Remediation

The sources list no fixed version for Frappe Suite. Update Frappe Suite to commit 2697564a9c46da6acc614743eaf9915fe5238f4f or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-109675
  2. 2026-10-13 Alias added: GHSA-8q8g-5ghh-6f67
  3. 2026-10-18 CISA SSVC decision points changed

References

Advisory 1

  • TI-2026-28140 ERPNext v15.103.1 and before is vulnerable to Server-Side Template Injection (SSTI). CVSS 3.1CRITICAL 9.8
  • TI-2025-40873 An issue was discovered in Frappe ERPNext through 15.89.0. CVSS 3.1CRITICAL 9.8
  • TI-2025-40872 An issue was discovered in Frappe ERPNext through 15.89.0. CVSS 3.1CRITICAL 9.8
  • TI-2025-40871 A Server-Side Template Injection (SSTI) vulnerability exists in the Frappe ERPNext… CVSS 3.1CRITICAL 9.8
  • TI-2025-32462 In Frappe ERPNext 15.57.5, the function get_rfq_containing_supplier() at… CVSS 3.1HIGH 8.2
  • TI-2025-32461 In Frappe ERPNext 15.57.5, the function get_stock_balance_for() at… CVSS 3.1HIGH 8.2
See all 321 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences