Vulnerability record · CVE-2018-1002104 · published 14 January 2020

CVE-2018-1002104: Kubernetes nginx ingress controller improper input validation vulnerability

Kubernetes · Nginx Ingress Controller

Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly.

5.3 CVSS 3.1 Medium EPSS 1.1% · top 34.7% CWE-215 · CWE-215CWE-20 · Improper input validation

5.3CVSS 3.1 base score, v2 5.0

1.1%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References

17 Jun 2026Last modified by NVD

Description

Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Nginx Ingress Controller Kubernetes

References

Link	Tags
https://github.com/kubernetes/ingress-nginx/pull/3125	PatchThird Party Advisory
https://github.com/kubernetes/ingress-nginx/pull/3125	PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2026-4342Kubernetes nginx ingress controller improper input validation vulnerabilityA security issue was discovered in ingress-nginx where a combination of Ingress annotations can be used to inject configuration into nginx. This can …EPSS 0.60%19 Mar 2026

Source: NIST National Vulnerability Database (record CVE-2018-1002104), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.