The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:85239 advisory.

    Python is an interpreted, interactive, object-oriented programming language, which includes modules,     classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to     many system calls and libraries, as well as to various windowing systems.

    Security Fix(es):

    * python: python: Arbitrary file deletion via race condition during temporary directory cleanup     (CVE-2026-12345)

    * python: python: Certificate verification bypass via missing server_hostname validation in     SSLContext.wrap_bio() (CVE-2026-19553)

    * python: Use-after-free of a server-side SSLContext when sni_callback switches contexts (CVE-2026-19445)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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RHEL 8 : python3 (RHSA-2026:85239)

critical Nessus Plugin ID 367385

Version 1.2

Version 1.1

Version 1.2 Oct 26, 2026, 2:57 PM Detection (updated detection logic) Plugin Feed: 202610261457
Version 1.1 Oct 20, 2026, 4:30 AM New Plugin Feed: 202610200430