elabftw allows MFA bypass during login

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Summary

CVECVE-2026-28510
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-05 13:16:28 UTC
Updated2026-05-12 13:58:22 UTC
DescriptioneLabFTW 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.

Risk And Classification

Primary CVSS: v3.1 5.9 MEDIUM from [email protected]

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

EPSS: 0.000450000 probability, percentile 0.139180000 (date 2026-05-12)

Problem Types: CWE-302 | CWE-302 CWE-302: Authentication Bypass by Assumed-Immutable Data

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Elabftw Elabftw All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Elabftw Elabftw affected = 5.4.1 Not specified

References

ReferenceSourceLinkTags
github.com/elabftw/elabftw/commit/8b7a575aef128870861187eaa2b2f0f08654ecf9 [email protected] github.com Patch
github.com/elabftw/elabftw/security/advisories/GHSA-x5wv-c9q4-fj65 [email protected] github.com Mitigation, Vendor Advisory
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