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Denial of Service (DoS) - An authenticated attacker can crash the server by sending a specially crafted request

Moderate
bsod90 published GHSA-9vph-2hvm-x66g Feb 9, 2026

Package

npm @cubejs-backend/server-core (npm)

Affected versions

>=1.1.17

Patched versions

1.5.13, 1.4.2

Description

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)

References

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

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2026-25957

Weaknesses

Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition. Learn more on MITRE.

Credits