CVE-2026-109675 Frappe Suite before commit 2697564 Broken Access Control in Mail Mailbox and Quota APIs
Authenticated users can access other users' mailbox data and quotas by manipulating JMAP account IDs in Frappe Suite.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109675?
CVE-2026-109675 is a medium-severity missing authorization vulnerability in frappe suite, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-109675?
How do I fix CVE-2026-109675?
No fix has been published for CVE-2026-109675 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-109675 being exploited?
There is no known exploitation of CVE-2026-109675 in the wild and no public exploit code.
Sources
Also known as GHSA-4gv8-m97c-4jmv, GHSA-8q8g-5ghh-6f67.