CVE-2026-16027 Unauthenticated WebSocket-to-XAdES SSRF in Revenue Administration's E-Signature

Server-Side request forgery SSRF vulnerability in Revenue Administration Türkiye's E-Signature allows Server Side Request Forgery. This issue affects Türkiye's E-Signature: from 2.4.4.0 before 2.5.1.0...

CVE-2026-16027

CVE-2026-16027 : An unauthenticated SSRF exists in Türkiye’s E-Signature (from 2.4.4.0 up to before 2.5.1.0). The issue allows server-side requests initiated by the service, with CVSS v3.1 base score 5.4 (Network attack vector, Low complexity, No privileges, User interaction required; Confidentia...

PT-2026-68878

Name of the Vulnerable Software and Affected Versions Revenue Administration Türkiye's E-Signature versions 2.4.4.0 through 2.5.0 Description A Server-Side Request Forgery SSRF issue exists in the Revenue Administration Türkiye's E-Signature software. This flaw allows an unauthenticated attacker ...