CVE-2025-22870 Affecting prometheus-alertmanager package, versions <0.28.1-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.02% (4th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-MINIMOSLATEST-PROMETHEUSALERTMANAGER-13331726
  • published6 Oct 2025
  • disclosed12 Mar 2025

Introduced: 12 Mar 2025

CVE-2025-22870  (opens in a new tab)

How to fix?

Upgrade Minimos:latest prometheus-alertmanager to version 0.28.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream prometheus-alertmanager package and not the prometheus-alertmanager package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be proxied.

CVSS Base Scores

version 3.1