Medium severity · published Oct 12, 2026
CVE-2026-109629
Frappe ERPNext before 15.121.3 Missing Authorization in Transactional Email Endpoint
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
Frappe ERPNext before 15.121.3 and 16.x before 16.35.0 contains a missing authorization vulnerability in an endpoint that sends transactional email through the site's configured outgoing account without checking the caller's authorization. Any authenticated user can supply arbitrary recipient lists and message content to send attacker-controlled messages carrying the organisation's sending identity.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ER
erpnext · frappe
before 15.121.3; 16.0.0-beta.1 before 16.35.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109629
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109629
vendor-advisory
https://github.com/frappe/erpnext/security/advisories/GHSA-7j2w-hg27-8g3q
third-party-advisory
https://www.vulncheck.com/advisories/frappe-erpnext-before-15.121.3-missing-authorization-in-transactional-email-endpoint
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