GitLab Enterprise Edition up to 18.6.5/18.7.3/18.8.3 API Endpoint authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in GitLab Enterprise Edition up to 18.6.5/18.7.3/18.8.3. This affects an unknown function of the component API Endpoint. This manipulation causes authorization. This vulnerability appears as CVE-2026-1080. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Enterprise Edition up to 18.6.5/18.7.3/18.8.3. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component API Endpoint. 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 confidentiality. The summary by CVE is:

GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to access iteration data from private descendant groups by querying the iterations API endpoint.

The weakness was presented by go7f0. It is possible to read the advisory at gitlab.com. This vulnerability is known as CVE-2026-1080 since 01/16/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298861 (GitLab 16.7 < 18.6.6 / 18.7 < 18.7.4 / 18.8 < 18.8.4 (CVE-2026-1080)), 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 (298861). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

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

CNA Base Score: 4.3
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: 298861
Nessus Name: GitLab 16.7 < 18.6.6 / 18.7 < 18.7.4 / 18.8 < 18.8.4 (CVE-2026-1080)

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

01/16/2026 CVE reserved
02/11/2026 +26 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: go7f0
Status: Confirmed

CVE: CVE-2026-1080 (🔒)
GCVE (CVE): GCVE-0-2026-1080
GCVE (VulDB): GCVE-100-345463

Entryinfo

Created: 02/11/2026 13:13
Updated: 02/13/2026 13:20
Changes: 02/11/2026 13:13 (65), 02/13/2026 13:20 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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