CVE-2026-45344

LinkAce: Setup database password newline injection enables pre-auth RCE on uninitialized instances

CVSS 8.1 HIGHEPSS 0.5%CWE-74

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

28 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Kovah · LinkAce

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References

https://github.com/Kovah/LinkAce/security/advisories/GHSA-37m5-936h-w455