CVE-2026-109629

4.3Medium

Published 12 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash

4.3Medium

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: Limited impact
Weakness: CWE-862

Impact

Authenticated users can spoof the organization's identity to send arbitrary emails to any recipient. The attacker only needs low-privileged access to the ERPNext instance.

Root cause

A transactional email endpoint fails to verify caller authorization before dispatching messages via the site's configured outgoing email account.

Affected systems

Frappe ERPNext versions before 15.121.3 and 16.x before 16.35.0

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Fix & remediation

Upgrade ERPNext to version 15.121.3, 16.35.0, or newer. If unable to patch immediately, disable outgoing email accounts or restrict network access to trusted users.

shell

$ bench update --apps erpnext

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD 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.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-109629