CVE-2025-13078
Received Received - Intake
Denial of Service via Webhook Resource Exhaustion in GitLab

Publication date: 2026-03-25

Last updated on: 2026-03-26

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to cause a denial of service due to excessive resource consumption when processing certain webhook configuration inputs.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-03-25
Last Modified
2026-03-26
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-14
NVD
CVE-2025-13078
EUVD
EUVD-2025-208991
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab From 18.9.0 (inc) to 18.9.3 (exc)
gitlab gitlab 18.10.0
gitlab gitlab From 18.9.0 (inc) to 18.9.3 (exc)
gitlab gitlab 18.10.0
gitlab gitlab From 16.10.0 (inc) to 18.8.7 (exc)
gitlab gitlab From 16.10.0 (inc) to 18.8.7 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability in GitLab CE/EE affects versions from 16.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1. It allows an authenticated user to cause a denial of service by consuming excessive resources when processing certain webhook configuration inputs.

Impact Analysis

The impact of this vulnerability is a denial of service condition, which means that an attacker who is authenticated can cause the GitLab service to become unavailable or unresponsive by triggering excessive resource consumption through specially crafted webhook configurations.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to version 18.8.7 or later if you are using the 16.10 to 18.8 series, version 18.9.3 or later if you are using the 18.9 series, or version 18.10.1 or later if you are using the 18.10 series.

This will prevent an authenticated user from causing a denial of service due to excessive resource consumption when processing certain webhook configuration inputs.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-13078. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart