CVE-2026-33953: high-severity vulnerability in Kovah LinkAce
LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.5epss 0.3%
LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostname. This allows an authenticated user to trigger server-side requests to internal services reachable by the LinkAce server but not directly reachable by an external user. Version 2.5.3 patches the issue.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Affected products
Kovah · LinkAceRelated CVEs — Kovah LinkAce
In the same product, most dangerous first.
CVE-2026-45344HIGHLinkAce: Setup database password newline injection enables pre-auth RCE on uninitialized instancesEPSS 0.5%CVE-2024-56508HIGHFile Upload Vulnerability Leading to XSS in LinkAce v1.15.5EPSS 0.4%CVE-2025-62720HIGHLinkAce: Data Exfiltration via Export Functions Allow Access to All Users' Private LinksEPSS 0.4%CVE-2025-62721HIGHLinkAce: Authorization Bypass Allows Unauthorized Access to All Private Links, Lists, and TagsEPSS 0.4%CVE-2026-49436HIGHLinkAce vulnerable to stored XSS via 'javascript:' URI in Bulk Link APIEPSS 0.4%CVE-2025-59424HIGHLinkAce Vulnerable to Stored XSS on the Audit PageEPSS 0.4%