CVE-2026-1500

Analyzed Analyzed - Analysis Complete

Denial of Service in GitLab CE/EE via File Upload

Publication date: 2026-06-11

Last updated on: 2026-06-15

Assigner: GitLab Inc.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to cause denial of service due to uncontrolled resource consumption when processing a specially crafted file upload.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-11

Last Modified

2026-06-15

Generated

2026-07-01

AI Q&A

2026-06-11

EPSS Evaluated

2026-06-30

NVD

CVE-2026-1500

EUVD

EUVD-2026-36233

Affected Vendors & Products

Vendor	Product	Version / Range
gitlab	gitlab	From 18.11.0 (inc) to 18.11.5 (exc)
gitlab	gitlab	From 19.0.0 (inc) to 19.0.2 (exc)
gitlab	gitlab	From 18.11.0 (inc) to 18.11.5 (exc)
gitlab	gitlab	From 19.0.0 (inc) to 19.0.2 (exc)
gitlab	gitlab	From 17.10.0 (inc) to 18.10.8 (exc)
gitlab	gitlab	From 17.10.0 (inc) to 18.10.8 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This vulnerability in GitLab CE/EE affects versions from 17.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2. Under certain conditions, an authenticated user could exploit this issue by uploading a specially crafted file, which causes uncontrolled resource consumption during processing.

This uncontrolled resource consumption can lead to a denial of service (DoS) condition, meaning the system could become unavailable or unresponsive.

Impact Analysis

The primary impact of this vulnerability is a denial of service (DoS) condition caused by excessive resource consumption when processing a malicious file upload.

An authenticated user could exploit this to disrupt the availability of the GitLab service, potentially affecting productivity and access to critical development resources.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to version 18.10.8 or later if you are using the 17.10 series, 18.11.5 or later if using the 18.11 series, or 19.0.2 or later if using the 19.0 series.

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