GitLab Enterprise Edition up to 18.0.5/18.1.3/18.2.1 Merge Request authorization

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

Summaryinfo

A vulnerability categorized as problematic has been discovered in GitLab Enterprise Edition up to 18.0.5/18.1.3/18.2.1. This affects an unknown function of the component Merge Request Handler. Executing a manipulation can lead to authorization. This vulnerability is registered as CVE-2025-8770. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Enterprise Edition up to 18.0.5/18.1.3/18.2.1. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Merge Request Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect integrity. CVE summarizes:

An issue has been discovered in GitLab EE affecting all versions from 18.0 prior to 18.0.6, 18.1 prior to 18.1.4, and 18.2 prior to 18.2.2 that could have allowed authenticated users with specific access to bypass merge request approval policies by manipulating approval rule identifiers.

The advisory is shared for download at gitlab.com. This vulnerability was named CVE-2025-8770 since 08/08/2025. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 260161 (Linux Distros Unpatched Vulnerability : CVE-2025-8770), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.0.6, 18.1.4 or 18.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (260161) and CERT Bund (WID-SEC-2025-1816). Once again VulDB remains the best source 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: 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: Authorization
CWE: CWE-639 / 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: 260161
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-8770

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Enterprise Edition 18.0.6/18.1.4/18.2.2

Timelineinfo

08/08/2025 CVE reserved
08/13/2025 +5 days Advisory disclosed
08/13/2025 +0 days VulDB entry created
09/02/2025 +20 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 549105
Status: Confirmed

CVE: CVE-2025-8770 (🔒)
GCVE (CVE): GCVE-0-2025-8770
GCVE (VulDB): GCVE-100-320020
CERT Bund: WID-SEC-2025-1816 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 08/13/2025 20:45
Updated: 09/02/2025 09:02
Changes: 08/13/2025 20:45 (65), 08/14/2025 02:16 (7), 08/15/2025 00:09 (1), 09/02/2025 09:02 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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