Improper Certificate Validation Affecting curl-minimal package, versions <0:7.76.1-40.el9_8.5


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-RHEL9-CURLMINIMAL-18962343
  • published19 Aug 2026
  • disclosed3 Jul 2026

Introduced: 3 Jul 2026

CVE-2026-8286  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:9 curl-minimal to version 0:7.76.1-40.el9_8.5 or higher.
This issue was patched in RHSA-2026:55439.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl-minimal package and not the curl-minimal package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not.

CVSS Base Scores

version 3.1