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Fixed

LIN1025-8433 : Security Advisory - python-pyopenssl - CVE-2026-27448

Created: Mar 18, 2026    Updated: May 10, 2026
Resolved Date: May 7, 2026
Found In Version: 10.25.33.2
Fix Version: 10.25.33.9
Severity: Standard
Applicable for: Wind River Linux LTS 25
Component/s: Userspace

Description

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.

CVEs

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