GitLab Community Edition/Enterprise Edition up to 18.2.6/18.3.2/18.4.0 Configuration insertion of sensitive information into sent data

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in GitLab Community Edition and Enterprise Edition up to 18.2.6/18.3.2/18.4.0. The impacted element is an unknown function of the component Configuration Handler. The manipulation leads to insertion of sensitive information into sent data. This vulnerability is traded as CVE-2025-9958. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.2.6/18.3.2/18.4.0. It has been rated as problematic. This issue affects some unknown functionality of the component Configuration Handler. The manipulation with an unknown input leads to a insertion of sensitive information into sent data vulnerability. Using CWE to declare the problem leads to CWE-201. The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor. Impacted is confidentiality. The summary by CVE is:

An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1, that could have allowed Guest users to access sensitive information stored in virtual registry configurations.

The weakness was shared by joaxcar as 567777. The advisory is shared at gitlab.com. The identification of this vulnerability is CVE-2025-9958 since 09/03/2025. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 265958 (GitLab 14.10 < 18.2.7 / 18.3 < 18.3.3 / 18.4 < 18.4.1 (CVE-2025-9958)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.2.7, 18.3.3 or 18.4.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (265958) and CERT Bund (WID-SEC-2025-2140). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Open Source GitLab

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.7
CNA Vector (GitLab): 🔒

CVSSv2info

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

Exploitinginfo

Class: Insertion of sensitive information into sent data
CWE: CWE-201 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265958
Nessus Name: GitLab 14.10 < 18.2.7 / 18.3 < 18.3.3 / 18.4 < 18.4.1 (CVE-2025-9958)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.2.7/18.3.3/18.4.1

Timelineinfo

09/03/2025 CVE reserved
09/26/2025 +23 days Advisory disclosed
09/26/2025 +0 days VulDB entry created
11/07/2025 +42 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 567777
Researcher: joaxcar
Status: Confirmed

CVE: CVE-2025-9958 (🔒)
GCVE (CVE): GCVE-0-2025-9958
GCVE (VulDB): GCVE-100-326069
CERT Bund: WID-SEC-2025-2140 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 09/26/2025 11:28
Updated: 11/07/2025 16:26
Changes: 09/26/2025 11:28 (66), 09/26/2025 22:02 (2), 09/27/2025 08:46 (7), 11/07/2025 16:26 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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