GitLab Community Edition/Enterprise Edition up to 18.7.5/18.8.5/18.9.1 Web Interface name resolution

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in GitLab Community Edition and Enterprise Edition up to 18.7.5/18.8.5/18.9.1. This issue affects some unknown processing of the component Web Interface. The manipulation results in name resolution. This vulnerability is reported as CVE-2026-1230. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in GitLab Community Edition and Enterprise Edition up to 18.7.5/18.8.5/18.9.1. Affected is an unknown functionality of the component Web Interface. The manipulation with an unknown input leads to a name resolution vulnerability. CWE is classifying the issue as CWE-706. The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere. This is going to have an impact on integrity. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 1.0 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to cause repository downloads to contain different code than displayed in the web interface due to incorrect validation of branch references under certain circumstances.

The weakness was disclosed by st4nly0n. The advisory is available at hackerone.com. This vulnerability is traded as CVE-2026-1230 since 01/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 302866 (Linux Distros Unpatched Vulnerability : CVE-2026-1230), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.7.6, 18.8.6 or 18.9.2 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

The vulnerability is also documented in the vulnerability database at Tenable (302866). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 4.1
CNA Vector (GitLab): 🔒

CVSSv2info

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

Exploitinginfo

Class: Name resolution
CWE: CWE-706
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: 302866
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-1230

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.7.6/18.8.6/18.9.2

Timelineinfo

01/20/2026 CVE reserved
03/11/2026 +50 days Advisory disclosed
03/11/2026 +0 days VulDB entry created
03/19/2026 +8 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: hackerone.com
Researcher: st4nly0n
Status: Confirmed

CVE: CVE-2026-1230 (🔒)
GCVE (CVE): GCVE-0-2026-1230
GCVE (VulDB): GCVE-100-350442

Entryinfo

Created: 03/11/2026 17:34
Updated: 03/19/2026 03:27
Changes: 03/11/2026 17:34 (66), 03/14/2026 07:36 (1), 03/18/2026 08:46 (11), 03/19/2026 03:27 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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