Kovah LinkAce up to 2.5.5 Mail Configuration injection

Summaryinfo

A vulnerability was found in Kovah LinkAce up to 2.5.5 and classified as critical. Affected by this issue is some unknown functionality of the component Mail Configuration Handler. Executing a manipulation can lead to injection. This vulnerability is handled as CVE-2026-45344. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Kovah LinkAce up to 2.5.5. It has been declared as critical. This vulnerability affects an unknown code of the component Mail Configuration Handler. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, the setup database configuration flow on uninitialized LinkAce instances accepts attacker-controlled database credential fields and writes them back into .env without escaping. A remote attacker who can reach the setup endpoints and supply a database they control can inject mail configuration variables and achieve command execution when the application later sends mail. This vulnerability is fixed in 2.5.6.

The advisory is available at github.com. This vulnerability was named CVE-2026-45344 since 05/11/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1055 by the MITRE ATT&CK project.

Upgrading to version 2.5.6 eliminates this vulnerability.

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Productinfo

Vendor

• Kovah

Name

• LinkAce

Version

• 2.5.0
• 2.5.1
• 2.5.2
• 2.5.3
• 2.5.4
• 2.5.5

Website

• Product: https://github.com/Kovah/LinkAce/

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