CVE-2026-28510: Elabftw

Medium severity, CVSS 5.9. EPSS: 0.4% chance of exploitation in the next 30 days.

eLabFTW is an open source electronic lab notebook. In elabftw versions through 5.4.1, the login flow did not reliably preserve the multi-factor authentication state across authentication steps. Under certain conditions, an attacker with valid primary credentials could complete authentication with an attacker-controlled TOTP secret and bypass the additional factor. This could result in unauthorized account access. This issue is fixed in version 5.4.2.

Affected products

• Elabftw Elabftw: before 5.4.2 (fixed in 5.4.2)

Published 2026-05-05. Last modified 2026-06-17.