GitLab Community Edition/Enterprise Edition up to 18.2.6/18.3.2/18.4.0 JSON File allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.2.6/18.3.2/18.4.0. It has been rated as problematic. Impacted is an unknown function of the component JSON File Handler. Performing a manipulation results in allocation of resources. This vulnerability is reported as CVE-2025-10858. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.2.6/18.3.2/18.4.0. It has been classified as problematic. This affects an unknown function of the component JSON File Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

An issue was discovered in GitLab CE/EE affecting all versions before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that allows unauthenticated users to cause a Denial of Service (DoS) condition while uploading specifically crafted large JSON files.

It is possible to read the advisory at gitlab.com. This vulnerability is uniquely identified as CVE-2025-10858 since 09/22/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 265957 (GitLab < 18.2.7 / 18.3 < 18.3.3 / 18.4 < 18.4.1 (CVE-2025-10858)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.2.7, 18.3.3 or 18.4.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (265957), EUVD (EUVD-2025-31327) and CERT Bund (WID-SEC-2025-2140). 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: 6.4
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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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: 265957
Nessus Name: GitLab < 18.2.7 / 18.3 < 18.3.3 / 18.4 < 18.4.1 (CVE-2025-10858)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.2.7/18.3.3/18.4.1

Timelineinfo

09/22/2025 CVE reserved
09/26/2025 +4 days Advisory disclosed
09/26/2025 +0 days VulDB entry created
09/27/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 570034
Status: Confirmed

CVE: CVE-2025-10858 (🔒)
GCVE (CVE): GCVE-0-2025-10858
GCVE (VulDB): GCVE-100-326067
EUVD: 🔒
CERT Bund: WID-SEC-2025-2140 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 09/26/2025 11:27
Updated: 09/27/2025 07:40
Changes: 09/26/2025 11:27 (65), 09/26/2025 19:39 (1), 09/26/2025 22:02 (2), 09/27/2025 07:40 (7)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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