GitLab Enterprise Edition up to 18.6.5/18.7.3/18.8.3 GraphQL allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in GitLab Enterprise Edition up to 18.6.5/18.7.3/18.8.3. Affected by this vulnerability is an unknown functionality of the component GraphQL. Executing a manipulation can lead to allocation of resources. This vulnerability is handled as CVE-2026-1387. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in GitLab Enterprise Edition up to 18.6.5/18.7.3/18.8.3. This vulnerability affects some unknown functionality of the component GraphQL. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. CVE summarizes:

GitLab has remediated an issue in GitLab EE affecting all versions from 15.6 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an authenticated user to cause Denial of Service by uploading a malicious file and repeatedly querying it through GraphQl.

The weakness was released by a92847865. The advisory is available at gitlab.com. This vulnerability was named CVE-2026-1387 since 01/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 298871 (GitLab 15.6 < 18.6.6 / 18.7 < 18.7.4 / 18.8 < 18.8.4 (CVE-2026-1387)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.6.6, 18.7.4 or 18.8.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (298871). 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: 5.4
VulDB Meta Temp Score: 5.3

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

CNA Base Score: 6.5
CNA Vector (GitLab): 🔒

CVSSv2info

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

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
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: 298871
Nessus Name: GitLab 15.6 < 18.6.6 / 18.7 < 18.7.4 / 18.8 < 18.8.4 (CVE-2026-1387)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Enterprise Edition 18.6.6/18.7.4/18.8.4

Timelineinfo

01/23/2026 CVE reserved
02/11/2026 +19 days Advisory disclosed
02/11/2026 +0 days VulDB entry created
02/13/2026 +2 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: gitlab.com
Researcher: a92847865
Status: Confirmed

CVE: CVE-2026-1387 (🔒)
GCVE (CVE): GCVE-0-2026-1387
GCVE (VulDB): GCVE-100-345466

Entryinfo

Created: 02/11/2026 13:14
Updated: 02/13/2026 02:19
Changes: 02/11/2026 13:14 (65), 02/13/2026 02:19 (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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