EUVD-2026-268139

fkie_cve-2026-25957

Cube is a semantic layer for building data applications. From 1.1.17 to before 1.5.13 and 1.4.2, it is possible to make the entire Cube API unavailable by submitting a specially crafted request to a Cube API endpoint. This vulnerability is fixed in 1.5.13 and 1.4.2.

GHSA-9vph-2hvm-x66g — Cube Core is vulnerable to Denial of Service (DoS) via crafted request

Affected: npm: @cubejs-backend/server-core

### **Impact**

It is possible to make the entire Cube API unavailable by submitting a specially crafted request to a Cube API endpoint.

### Affected Versions:

`>= 1.1.17`

### Mitigation:

Upgrade to a patched version:

- 1.5.13 and later (regular release) - 1.4.2 (active [LTS release](https://cube.dev/docs/product/administration/distribution#long-term-support))

### **References**

The issue was reported by our Core engineer, Dmitrii Patsura (@ovr), in our internal Slack and was promptly patched in a recent update.

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EUVD-2026-268139

fkie_cve-2026-25957

GHSA-9vph-2hvm-x66g — Cube Core is vulnerable to Denial of Service (DoS) via crafted request