Authentication Bypass by Assumed-Immutable Data in eLabFTW - CVE-2026-28510
Published: May 25, 2026
Vulnerability identifier: #VU132290
CSH Severity: Low
CVSS v4: 7.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-28510
CWE-ID: CWE-302
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass multi-factor authentication and gain unauthorized account access.
The vulnerability exists due to authentication bypass by assumed-immutable data in the login flow when processing attacker-controlled TOTP secret data. A remote privileged user can use valid primary credentials and complete authentication without the additional factor to bypass multi-factor authentication and gain unauthorized account access.
Multi-factor authentication may not be enforced even when enabled under certain conditions.
Affected software
eLabFTW
How to mitigate CVE-2026-28510
Install security update from vendor's website.
eLabFTW - update to 5.4.2