CVE-2026-87862 Affecting curl package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-DEBIAN14-CURL-20936791
  • published14 Oct 2026
  • disclosed20 Oct 2026

Introduced: 14 Oct 2026

NewCVE-2026-87862  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 curl.

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.

Importing a includeSubDomains parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS.

CVSS Base Scores

version 3.1