GitLab Community Edition/Enterprise Edition up to 18.8.6/18.9.2/18.10.0 Repository authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in GitLab Community Edition and Enterprise Edition up to 18.8.6/18.9.2/18.10.0. Affected is an unknown function of the component Repository Handler. Such manipulation leads to authorization. This vulnerability is documented as CVE-2026-2726. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GitLab Community Edition and Enterprise Edition up to 18.8.6/18.9.2/18.10.0. Affected by this issue is an unknown functionality of the component Repository Handler. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to perform unauthorized actions on merge requests in other projects due to improper access control during cross-repository operations.

The weakness was released by Pkkr. The advisory is shared for download at hackerone.com. This vulnerability is handled as CVE-2026-2726 since 02/18/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 18.8.7, 18.9.3 or 18.10.1 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

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

CNA Base Score: 4.3
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
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 18.8.7/18.9.3/18.10.1

Timelineinfo

02/18/2026 CVE reserved
03/25/2026 +35 days Advisory disclosed
03/25/2026 +0 days VulDB entry created
04/01/2026 +7 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: hackerone.com
Researcher: Pkkr
Status: Confirmed

CVE: CVE-2026-2726 (🔒)
GCVE (CVE): GCVE-0-2026-2726
GCVE (VulDB): GCVE-100-353396

Entryinfo

Created: 03/25/2026 20:01
Updated: 04/01/2026 06:13
Changes: 03/25/2026 20:01 (66), 04/01/2026 06:13 (1)
Complete: 🔍
Cache ID: 216::103

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