CVE-2026-6429 Affecting curl package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-UBUNTU2004-CURL-16335495
  • published1 May 2026
  • disclosed13 May 2026

Introduced: 1 May 2026

CVE-2026-6429  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 curl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

When asked to both use a .netrc file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.

CVSS Base Scores

version 3.1