Vaadin Flow up to 14.14.0/23.6.6/24.9.8/25.0.2 ZIP Node.js path traversal

Summaryinfo

A vulnerability described as critical has been identified in Vaadin Flow up to 14.14.0/23.6.6/24.9.8/25.0.2. This affects an unknown part of the file Node.js of the component ZIP Handler. The manipulation results in path traversal. This vulnerability is identified as CVE-2026-2741. The attack is only possible with local access. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in Vaadin Flow up to 14.14.0/23.6.6/24.9.8/25.0.2. Affected is an unknown code block of the file Node.js of the component ZIP Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. CVE summarizes:

Specially crafted ZIP archives can escape the intended extraction directory during Node.js download and extraction in Vaadin 14.2.0 through 14.14.0, 15.0.0 through 23.6.6, 24.0.0 through 24.9.8, and 25.0.0 through 25.0.2. Vaadin’s build process can automatically download and extract Node.js if it is not installed locally. If an attacker can intercept or control this download via DNS hijacking, a MITM attack, a compromised mirror, or a supply chain attack, they can serve a malicious archive containing path traversal sequences that write files outside the intended extraction directory. Users of affected versions should use a globally preinstalled Node.js version compatible with their Vaadin version, or upgrade as follows: 14.2.0-14.14.0 to 14.14.1, 15.0.0-23.6.6 to 23.6.7, 24.0.0-24.9.8 to 24.9.9, and 25.0.0-25.0.2 to 25.0.3 or newer. Please note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24, 25 version.

The advisory is shared for download at vaadin.com. This vulnerability is traded as CVE-2026-2741 since 02/19/2026. The exploitability is told to be difficult. The attack needs to be approached locally. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Vaadin

Name

• Flow

Version

• 14.0
• 14.1
• 14.2
• 14.3
• 14.4
• 14.5
• 14.6
• 14.7
• 14.8
• 14.9
• 14.10
• 14.11
• 14.12
• 14.13
• 14.14.0
• 23.6.0
• 23.6.1
• 23.6.2
• 23.6.3
• 23.6.4
• 23.6.5
• 23.6.6
• 24.9.0
• 24.9.1
• 24.9.2
• 24.9.3
• 24.9.4
• 24.9.5
• 24.9.6
• 24.9.7
• 24.9.8
• 25.0.0
• 25.0.1
• 25.0.2

CPE 2.3info

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CPE 2.2info

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Entryinfo

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