Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck

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

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in suite from frappe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 93.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
frappe	suite	0 – before 2697564a9c46da6acc614743eaf9915fe5238f4f

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-4gv8-m97c-4jmv) vendor-advisory
VulnCheck Advisory: Frappe Suite before commit 2697564 Broken Access Control in Mail Mailbox and Quota APIs third-party-advisory