CVE-2026-45344: CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in Kovah LinkAce
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.
AI Analysis
Technical Summary
LinkAce before version 2.5.6 improperly neutralizes special elements in output during the setup database configuration flow. Specifically, it accepts attacker-controlled database credential fields and writes them into the .env configuration file without escaping. This improper neutralization (CWE-74) enables a remote attacker with access to the setup endpoints to inject mail configuration variables. When the application later sends mail, this injection can lead to command execution. The vulnerability has a CVSS 3.1 score of 8.1, indicating high severity. No official remediation level or patch link is provided in the data, but the issue is fixed in version 2.5.6.
Potential Impact
Successful exploitation allows a remote unauthenticated attacker to achieve command execution on the host running LinkAce by injecting malicious mail configuration variables during the setup process. This can lead to full compromise of the affected system. The vulnerability affects only uninitialized LinkAce instances prior to version 2.5.6 that expose the setup endpoints to attackers.
Mitigation Recommendations
Upgrade LinkAce to version 2.5.6 or later, where this vulnerability is fixed. Since the vendor advisory confirms the fix in 2.5.6, applying this update fully mitigates the issue. Restrict access to the setup endpoints to trusted users only until the upgrade is applied. Patch status is confirmed by the vendor fix in version 2.5.6.
CVE-2026-45344: CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in Kovah LinkAce
Description
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.
CVSS v3.1
Score 8.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
LinkAce before version 2.5.6 improperly neutralizes special elements in output during the setup database configuration flow. Specifically, it accepts attacker-controlled database credential fields and writes them into the .env configuration file without escaping. This improper neutralization (CWE-74) enables a remote attacker with access to the setup endpoints to inject mail configuration variables. When the application later sends mail, this injection can lead to command execution. The vulnerability has a CVSS 3.1 score of 8.1, indicating high severity. No official remediation level or patch link is provided in the data, but the issue is fixed in version 2.5.6.
Potential Impact
Successful exploitation allows a remote unauthenticated attacker to achieve command execution on the host running LinkAce by injecting malicious mail configuration variables during the setup process. This can lead to full compromise of the affected system. The vulnerability affects only uninitialized LinkAce instances prior to version 2.5.6 that expose the setup endpoints to attackers.
Mitigation Recommendations
Upgrade LinkAce to version 2.5.6 or later, where this vulnerability is fixed. Since the vendor advisory confirms the fix in 2.5.6, applying this update fully mitigates the issue. Restrict access to the setup endpoints to trusted users only until the upgrade is applied. Patch status is confirmed by the vendor fix in version 2.5.6.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-11T21:40:08.177Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a18b4aee29bf47b5032f463
Added to database: 05/28/2026, 21:33:34 UTC
Last enriched: 06/05/2026, 21:00:13 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 67
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