CVE-2026-94439 Affecting golang-1.24 package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.32% (23rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-GOLANG124-20675120
  • published9 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-94439  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest golang-1.24.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-1.24 package and not the golang-1.24 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.

CVSS Base Scores

version 3.1