CVE-2026-28510

Description

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.

CVSS v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0005

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-302 CWE-302

Affected Products

Vendor	Product	Versions
elabftw	elabftw	< 5.4.2

References

Advisories & Patches

https://github.com/elabftw/elabftw/commit/8b7a575aef128870861187eaa2b2f0f08654ecf9 https://github.com/elabftw/elabftw/security/advisories/GHSA-x5wv-c9q4-fj65

Frequently Asked Questions

What is CVE-2026-28510? +

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. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2026-28510? +

CVE-2026-28510 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0005, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-28510? +

CVE-2026-28510 affects products from elabftw, specifically: elabftw. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-28510? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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