Quick answers
- Is CVE-2026-45344 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-45344 being exploited in the wild.
- How severe is CVE-2026-45344?
- High severity, with a CVSS score of 8.1, published 28 May 2026.
- Which products and versions are affected?
- Kovah LinkAce < 2.5.6.
- Is there a fix for CVE-2026-45344?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-45344 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-45344?
- Check whether you run Kovah LinkAce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A newline injection vulnerability exists in the DatabaseController::configure() method of LinkAce. During the initial setup of an uninitialized instance, the application fails to escape database credential inputs (specifically db_password) before writing them to the .env file using preg_replace(). An attacker can provide a payload that breaks out of the DB_PASSWORD variable and injects new environment variables, such as MAIL_MAILER=sendmail and MAIL_SENDMAIL_PATH. By then triggering a password reset request, the application uses the injected sendmail path to execute arbitrary shell commands via Symfony's proc_open(). This exploit requires the attacker to have network access to the setup endpoints and a reachable database they control. The issue is resolved in version 2.5.6.
Affected products
- Kovah LinkAce < 2.5.6
Timeline
- 2026-05-10: advisory: GitHub Security Advisory published by vendor
- 2026-05-28: disclosed: CVE published to NVD