GitLab Enterprise Edition up to 18.3.3/18.4.1 GraphQL Mutation authorization

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

Summaryinfo

A vulnerability marked as problematic has been reported in GitLab Enterprise Edition up to 18.3.3/18.4.1. Affected by this vulnerability is an unknown functionality of the component GraphQL Mutation Handler. Performing a manipulation results in authorization. This vulnerability was named CVE-2025-11340. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Enterprise Edition up to 18.3.3/18.4.1. It has been classified as problematic. This affects an unknown code of the component GraphQL Mutation 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 integrity. The summary by CVE is:

GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 to 18.3.4, 18.4 to 18.4.2 that, under certain conditions, could have allowed authenticated users with read-only API tokens to perform unauthorized write operations on vulnerability records by exploiting incorrectly scoped GraphQL mutations.

It is possible to read the advisory at about.gitlab.com. This vulnerability is uniquely identified as CVE-2025-11340 since 10/06/2025. 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.

The vulnerability scanner Nessus provides a plugin with the ID 269802 (GitLab 18.3 < 18.3.4 / 18.4 < 18.4.2 (CVE-2025-11340)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.3.4 or 18.4.2 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

The vulnerability is also documented in the databases at Tenable (269802), EUVD (EUVD-2025-33333) and CERT Bund (WID-SEC-2025-2236). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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: 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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Nessus ID: 269802
Nessus Name: GitLab 18.3 < 18.3.4 / 18.4 < 18.4.2 (CVE-2025-11340)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Enterprise Edition 18.3.4/18.4.2

Timelineinfo

10/06/2025 CVE reserved
10/09/2025 +3 days Advisory disclosed
10/09/2025 +0 days VulDB entry created
11/22/2025 +44 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 567847
Status: Confirmed

CVE: CVE-2025-11340 (🔒)
GCVE (CVE): GCVE-0-2025-11340
GCVE (VulDB): GCVE-100-327723
EUVD: 🔒
CERT Bund: WID-SEC-2025-2236 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 10/09/2025 15:42
Updated: 11/22/2025 01:26
Changes: 10/09/2025 15:42 (66), 10/09/2025 15:50 (1), 10/10/2025 14:05 (2), 10/10/2025 21:28 (7), 11/22/2025 01:26 (1)
Complete: 🔍
Cache ID: 216::103

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

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