Unauthenticated WebSocket-to-XAdES SSRF in Revenue Administration's E-Signature
Priority LOW 24CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0024 15th percentileScored 2026-11-07
Fix Fixed E-Signature (Revenue Administration): 2.5.1.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Revenue Administration | E-Signature | 2.4.4.0 to before 2.5.1.0 | 2.5.1.0 | Patch available | CNA |
- E-Signature VendorRevenue Administration Affected 2.4.4.0 to before 2.5.1.0 Fixed in 2.5.1.0 Patch available CNA
Remediation
- Fix · CNA E-Signature (Revenue Administration) Fixed in 2.5.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16027
- 2026-10-03 Alias added: GHSA-jxrw-hc36-36pw
References
Sources
- CVE-2026-16027 · CVE Program
- CVE-2026-16027 · NVD
- FIRST EPSS
- GHSA-jxrw-hc36-36pw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences