---
id: "CVE-2026-108837"
kind: "vulnerability"
aliases: ["CVE-2026-108837"]
title: "Apache Kylin: project admin can exhaust resources via cache API"
severity: "medium"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["apache-kylin", "olap", "package", "self-hosted"]
not_affected_if: ["no-project-admin-users", "version-outside-4.0.0-to-5.0.4"]
published_at: "2026-10-19T10:16:45+00:00"
first_seen_at: "2026-10-23T21:57:17+00:00"
updated_at: "2026-10-25T05:12:36+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-108837", "first_seen_at": "2026-10-23T21:57:17+00:00"}]
---

# Apache Kylin: project admin can exhaust resources via cache API

Apache Kylin versions 4.0.0 through 5.0.4 let a user with project admin permission call a cache API that triggers computed-column resource exhaustion. An attacker can degrade or crash the service by consuming memory or compute.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Apache Kylin version and see whether it falls in `4.0.0` through `5.0.4`.
- Review which accounts hold project admin permission in Kylin.

## Fix

- Upgrade Apache Kylin to `5.0.5`.
- Restrict project admin permission to trusted users until the upgrade is applied.

## Timeline

- 2026-10-23T21:57:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-108837

## From the sources

Allocation of resources without limits or throttling vulnerability in Apache Kylin. Given an attacker has got project admin permission, an cache API maybe used to cause computed-column resource exhaustion.



This issue affects Apache Kylin: from 4.0.0 through 5.0.4.



Users are recommended to upgrade to version 5.0.5, which fixes the issue.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_