Improper Certificate Validation Affecting curl package, versions <0:8.3.0-1.amzn2.0.13


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.31% (22nd percentile)

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  • Snyk IDSNYK-AMZN2-CURL-20244534
  • published29 Sept 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 Amazon-Linux:2 curl to version 0:8.3.0-1.amzn2.0.13 or higher.
This issue was patched in ALAS2-2026-3953.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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