Improper Certificate Validation Affecting python3.13-idle package, versions <0:3.13.18-1.amzn2023.0.1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.53% (45th percentile)

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  • Snyk IDSNYK-AMZN2023-PYTHON313IDLE-22394032
  • published10 Nov 2026
  • disclosed24 Oct 2026

Introduced: 24 Oct 2026

NewCVE-2026-115557  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 python3.13-idle to version 0:3.13.18-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-3407.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.13-idle package and not the python3.13-idle package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Python has added a denylist for known compromised certificates to the "ssl" module to ensure user safety even without certificate revocation configured. Known compromised certificates will automatically be rejected regardless of the SSLContext policy configuration.

CVSS Base Scores

version 3.1