CVE-2025-58186 Affecting loki-2.9 package, versions <2.9.15-r2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.04% (12th 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-LOKI29-13827657
  • published4 Nov 2025
  • disclosed29 Oct 2025

Introduced: 29 Oct 2025

NewCVE-2025-58186  (opens in a new tab)

How to fix?

Upgrade Minimos:latest loki-2.9 to version 2.9.15-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream loki-2.9 package and not the loki-2.9 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.

CVSS Base Scores

version 3.1