Not Failing Securely ('Failing Open') Affecting az package, versions <2.84.0-r3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (14th percentile)

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  • Snyk IDSNYK-WOLFILATEST-AZ-15753011
  • published23 Mar 2026
  • disclosed18 Mar 2026

Introduced: 18 Mar 2026

CVE-2026-27448  (opens in a new tab)
CWE-636  (opens in a new tab)

How to fix?

Upgrade Wolfi az to version 2.84.0-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream az package and not the az package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to set_tlsext_servername_callback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Starting in version 26.0.0, unhandled exceptions now result in rejecting the connection.

CVSS Base Scores

version 3.1