Authorization bypass through user-controlled key in EspoCRM - CVE-2026-41141
Published: May 11, 2026
Vulnerability identifier: #VU130975
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-41141
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: EspoCRM
Affected software:
EspoCRM
EspoCRM
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to authorization bypass through a user-controlled key in the POST /api/v1/EmailTemplate/:id/prepare endpoint when resolving an entity from a supplied emailAddress parameter. A remote user can send a specially crafted request with a target email address and template placeholders to disclose sensitive information.
The issue bypasses read restrictions such as read: own or read: team for Contact, Lead, Account, and User entities.
How to mitigate CVE-2026-41141
Install security update from vendor's website.