Ministry of Justice UYAP Document Editor up to 5.4.16 xml external entity reference

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.43+

Summaryinfo

A vulnerability was found in Ministry of Justice UYAP Document Editor up to 5.4.16 and classified as critical. This issue affects some unknown processing. Executing a manipulation can lead to xml external entity reference. This vulnerability appears as CVE-2026-16999. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Ministry of Justice UYAP Document Editor up to 5.4.16. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Improper restriction of XML external entity reference vulnerability in Ministry of Justice UYAP Document Editor allows Serialized Data External Linking. This issue affects UYAP Document Editor: from 4.5.17 before 5.4.17.

The advisory is shared for download at siberguvenlik.gov.tr. This vulnerability was named CVE-2026-16999 since 07/24/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.4.17 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: UYAP Document Editor 5.4.17

Timelineinfo

07/24/2026 CVE reserved
08/12/2026 +19 days Advisory disclosed
08/12/2026 +0 days VulDB entry created
08/12/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: siberguvenlik.gov.tr
Status: Confirmed

CVE: CVE-2026-16999 (🔒)
GCVE (CVE): GCVE-0-2026-16999
GCVE (VulDB): GCVE-100-389008

Entryinfo

Created: 08/12/2026 16:16
Changes: 08/12/2026 16:16 (53)
Complete: 🔍
Cache ID: 216::103

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