Description
LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, LinkRepository::update and CheckLinksCommand::checkLink do not check for private IPs. An authenticated user can read responses from internal services (AWS IMDSv1, cloud metadata, internal APIs) by creating a link with a public URL and then updating it to a private IP. The links:check cron job makes the request server-side without IP filtering. This can expose cloud credentials, internal service data, and network topology. This vulnerability is fixed in 2.5.4.
Affected products
linkace: linkace
References2
- github.com/Kovah/LinkAce/security/advisories/GHSA-4jhm-r4f5-p7xm ExploitMitigationVendor Advisory
- github.com/Kovah/LinkAce/security/advisories/GHSA-4jhm-r4f5-p7xm ExploitMitigationVendor Advisory
Metrics
- CVSS 3.1
-
5.0
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N - EPSS — exploit probability
- 0% percentile: 21 · as of 12 November 2026
- CWE
- CWE-918
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