CVE-2026-4894 (GCVE-0-2026-4894)

Vulnerability from cvelistv5 – Published: 2026-10-08 08:44 – Updated: 2026-10-08 13:59
VLAI
Title
Authentication bypass in multiple products from Frappe Technologies
Summary
A vulnerability has been identified regarding insufficient validation in the Frappe Cloud/ERPNext authentication process, which allows multiple email addresses to be accepted by manipulating the email field in the /api/method/press.api.account.signup endpoint. The vulnerability occurs when an unauthenticated remote attacker adds more than one email address. The service processes the entire value as a valid list of recipients and sends the OTP code to all addresses without proper validation of all added emails (only one of them needs to be valid). Exploiting this vulnerability would allow an attacker to: * Obtain the authentication OTP; * Impersonate someone else in the registration process; * Register accounts using other people's email addresses without access to the mailbox; * Indirectly confirm the existence of already registered email addresses.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 13:57 UTC
CWE
  • CWE-290 - Authentication bypass by spoofing
Assigner
References
Impacted products
Vendor Product Version
Frappe Technologies Frappe Technologies Affected: Version before 23/03/2026
    cpe:2.3:a:frappe_technologies:frappe_technologies:version_before_23_03_2026:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-08 08:40
Credits
Miguel Jiménez Cámara
Show details on NVD website
To clipboard 

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