CVE-2026-16027

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

Published Aug 7, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Revenue Administration
Revenue Administration türkiye's E-signature
Vendors & Products Revenue Administration
Revenue Administration türkiye's E-signature
Type Values Removed Values Added
Title Unauthenticated WebSocket-to-XAdES SSRF in Revenue Administration of Türkiye's E-Signature Unauthenticated WebSocket-to-XAdES SSRF in Revenue Administration's E-Signature
Type Values Removed Values Added
Description 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.
Title Unauthenticated WebSocket-to-XAdES SSRF in Revenue Administration of Türkiye's E-Signature
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TR-CERT
Published
Updated
Aug 7, 2026, 3:24 PM
Reserved
Jul 17, 2026, 8:21 AM
Status
Deferred
Published
Aug 7, 2026, 8:16 AM
Modified
Oct 23, 2026, 9:10 PM