Medium severity · published Oct 12, 2026
CVE-2026-109675
Frappe Suite before commit 2697564 Broken Access Control in Mail Mailbox and Quota APIs
4.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
suite · frappe
before 2697564a9c46da6acc614743eaf9915fe5238f4f · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109675
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109675
vendor-advisory
https://github.com/frappe/suite/security/advisories/GHSA-4gv8-m97c-4jmv
third-party-advisory
https://www.vulncheck.com/advisories/frappe-suite-before-commit-2697564-broken-access-control-in-mail-mailbox-and-quota-apis