CVE-2025-58186 Affecting golang-1.19 package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.53% (42nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-GOLANG119-18766840
  • published14 Aug 2026
  • disclosed29 Oct 2025

Introduced: 29 Oct 2025

CVE-2025-58186  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest golang-1.19.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-1.19 package and not the golang-1.19 package as distributed by Echo. See How to fix? for Echo: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