Improper XML External Entity Reference in UYAP Document Editor by Ministry of Justice
CVE-2026-16999

6.3MEDIUM

Key Information:

Vendor

Ministry Of Justice

Status
Uyap Document Editor
Vendor
CVE Published:
12 August 2026

What is CVE-2026-16999?

A vulnerability has been identified in the UYAP Document Editor developed by the Ministry of Justice, which allows for serialized data external linking. This flaw arises from improper restrictions on XML external entity references, potentially exposing sensitive data processed by the application. Proper mitigation measures should be implemented to safeguard against unauthorized access and data leakage, especially for versions prior to 5.4.17.

Affected Version(s)

UYAP Document Editor 4.5.17 < 5.4.17

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/...
government-resource

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mustafa Anıl YILDIRIM
BegĂĽm ERDAL
.