CVE-2025-58186 Affecting logstash-9.0-with-output-opensearch package, versions <9.0.8-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LOGSTASH90WITHOUTPUTOPENSEARCH-13828384
  • published4 Nov 2025
  • disclosed29 Oct 2025

Introduced: 29 Oct 2025

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

How to fix?

Upgrade Minimos:latest logstash-9.0-with-output-opensearch to version 9.0.8-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream logstash-9.0-with-output-opensearch package and not the logstash-9.0-with-output-opensearch 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