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VulnerabilityPublished Updated

CVE-2026-45344: Kovah LinkAce · Injection

Affects Kovah LinkAceSource CVE Database V5

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Not known to be exploited · CVSS 8.1 High : upgrade to 2.5.6 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.5.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade LinkAce and kovah/linkace to 2.5.6.

Affected software

ProductAffectedFixed in
KovahLinkAceAffected
  • <2.5.6
Fixed in
  • 2.5.6
GitHubkovah/linkacepkg:github/kovah/linkaceOther threatsAffected
  • <2.5.6
Fixed in
  • 2.5.6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

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.

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.

References

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