GitLab Community Edition/Enterprise Edition up to 18.10.7/18.11.4/19.0.1 Merge Request authorization

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k1.69-

Summaryinfo

A vulnerability, which was classified as critical, has been found in GitLab Community Edition and Enterprise Edition up to 18.10.7/18.11.4/19.0.1. Affected by this issue is some unknown functionality of the component Merge Request Handler. Performing a manipulation results in authorization. This vulnerability is identified as CVE-2026-6269. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in GitLab Community Edition and Enterprise Edition up to 18.10.7/18.11.4/19.0.1. This affects an unknown functionality of the component Merge Request Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to modify hidden merge requests due to incorrect authorization enforcements.

The weakness was released by rogerace. It is possible to read the advisory at gitlab.com. This vulnerability is uniquely identified as CVE-2026-6269 since 04/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 18.10.8, 18.11.5 or 19.0.2 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

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

CNA Base Score: 5.4
CNA Vector (GitLab): 🔒

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / 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: Community Edition/Enterprise Edition 18.10.8/18.11.5/19.0.2

Timelineinfo

04/14/2026 CVE reserved
06/11/2026 +58 days Advisory disclosed
06/11/2026 +0 days VulDB entry created
06/11/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: gitlab.com
Researcher: rogerace
Status: Confirmed

CVE: CVE-2026-6269 (🔒)
GCVE (CVE): GCVE-0-2026-6269
GCVE (VulDB): GCVE-100-370371

Entryinfo

Created: 06/11/2026 16:20
Changes: 06/11/2026 16:20 (66)
Complete: 🔍
Cache ID: 216::103

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