eLabFTW up to 5.4.1 information disclosure

Summaryinfo

A vulnerability identified as problematic has been detected in eLabFTW up to 5.4.1. Affected is an unknown function. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2026-28511. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in eLabFTW up to 5.4.1 and classified as problematic. This issue affects some unknown functionality. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

eLabFTW is an open source electronic lab notebook. Prior to version 5.4.2, in certain cases, an authenticated user performing a numeric reference/search can return results that include resources the requesting user is not authorized to view. The exposed information is limited (only the title). Attempts to access the underlying protected resource content remain blocked by authorization checks. Version 5.4.2 fixes the issue. # Affected Scope Cross-scope visibility of titles. No confirmed bypass of content-level access controls # Preconditions An authenticated user account No special privileges required beyond standard access # Impact This may enable unauthorized disclosure of sensitive information if confidential data is included in resource titles. Examples could include project names, patient identifiers, or other regulated information embedded in titles.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-28511 since 02/27/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 5.4.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• eLabFTW

Version

• 5.4.0
• 5.4.1

Website

• Product: https://github.com/elabftw/elabftw/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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