GitLab Enterprise Edition prior 16.4.3/16.5.3/16.6.1 Allowed to Merge access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.1$0-$5k0.00

Summaryinfo

A vulnerability was found in GitLab Enterprise Edition. It has been rated as critical. This affects an unknown part of the component Allowed to Merge Handler. This manipulation causes access control. The identification of this vulnerability is CVE-2023-4658. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in GitLab Enterprise Edition (Bug Tracking Software). It has been declared as problematic. Affected by this vulnerability is an unknown function of the component Allowed to Merge Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity. The summary by CVE is:

An issue has been discovered in GitLab EE affecting all versions starting from 8.13 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to abuse the `Allowed to merge` permission as a guest user, when granted the permission through a group.

The weakness was shared 12/01/2023. The advisory is shared at gitlab.com. This vulnerability is known as CVE-2023-4658 since 08/31/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 16.4.3, 16.5.3 or 16.6.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-54510). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.1
NVD Vector: 🔍

CNA Base Score: 3.1
CNA Vector (GitLab Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Enterprise Edition 16.4.3/16.5.3/16.6.1

Timelineinfo

08/31/2023 🔍
12/01/2023 +92 days 🔍
12/01/2023 +0 days 🔍
11/20/2025 +720 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: 42383
Status: Confirmed

CVE: CVE-2023-4658 (🔍)
GCVE (CVE): GCVE-0-2023-4658
GCVE (VulDB): GCVE-100-246589
EUVD: 🔍

Entryinfo

Created: 12/01/2023 08:19
Updated: 11/20/2025 17:43
Changes: 12/01/2023 08:19 (49), 12/21/2023 17:23 (1), 12/21/2023 17:30 (1), 10/03/2024 13:55 (26), 11/20/2025 17:43 (1)
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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