GitLab up to 19.1.7/19.2.5/19.3.1 GraphQL Complexity Calculation allocation of resources

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k1.35

Summaryinfo

A vulnerability was found in GitLab up to 19.1.7/19.2.5/19.3.1 and classified as problematic. The impacted element is an unknown function of the component GraphQL Complexity Calculation. Such manipulation leads to allocation of resources. This vulnerability is referenced as CVE-2026-1168. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab up to 19.1.7/19.2.5/19.3.1 and classified as problematic. Affected by this issue is an unknown code of the component GraphQL Complexity Calculation. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4.6 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an unauthenticated user to cause denial of service due to improper resource allocation limits in the GraphQL complexity calculation logic.

The advisory is shared for download at hackerone.com. This vulnerability is handled as CVE-2026-1168 since 01/19/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 19.1.8, 19.2.6 or 19.3.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-3315). Once again VulDB remains the best source for vulnerability data.

Affected

  • Open Source GitLab

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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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
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: GitLab 19.1.8/19.2.6/19.3.2

Timelineinfo

01/19/2026 CVE reserved
09/16/2026 +239 days Advisory disclosed
09/16/2026 +0 days VulDB entry created
09/16/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: hackerone.com
Status: Confirmed

CVE: CVE-2026-1168 (🔒)
GCVE (CVE): GCVE-0-2026-1168
GCVE (VulDB): GCVE-100-405500
CERT Bund: WID-SEC-2026-3315 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 09/16/2026 08:50
Updated: 09/16/2026 12:33
Changes: 09/16/2026 08:50 (63), 09/16/2026 12:33 (6)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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