CVE-2026-86411 Affecting curl package, versions <8.22.0-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-DEBIAN14-CURL-20936808
  • published14 Oct 2026
  • disclosed20 Oct 2026

Introduced: 14 Oct 2026

NewCVE-2026-86411  (opens in a new tab)

How to fix?

Upgrade Debian:14 curl to version 8.22.0-1 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 Debian. See How to fix? for Debian:14 relevant fixed versions and status.

An ftp:// transfer configured with CURLUSESSL_NONE can reuse a pooled FTP control connection that a previous easy handle upgraded with STARTTLS and authenticated using a client certificate. The second handle performs neither a new TLS handshake nor a new FTP login, so the server continues to authorize it under the first handle's certificate identity.

CVSS Base Scores

version 3.1