CVE-2026-3784 Affecting curl package, versions <8.14.1-r4


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.47% (39th 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-ALPINE322-CURL-21202301
  • published18 Oct 2026
  • disclosed11 Mar 2026

Introduced: 11 Mar 2026

CVE-2026-3784  (opens in a new tab)

How to fix?

Upgrade Alpine:3.22 curl to version 8.14.1-r4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine. See How to fix? for Alpine:3.22 relevant fixed versions and status.

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.

CVSS Base Scores

version 3.1