CVE-2025-58186 Affecting s5cmd package, versions <2.3.0-r7


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-CHAINGUARDLATEST-S5CMD-13820056
  • published3 Nov 2025
  • disclosed29 Oct 2025

Introduced: 29 Oct 2025

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

How to fix?

Upgrade Chainguard s5cmd to version 2.3.0-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream s5cmd package and not the s5cmd package as distributed by Chainguard. See How to fix? for Chainguard 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