The "profiling.sampling" module (Python 3.15+) and "asyncio introspection capabilities" (3.14+, "python -m asyncio ps" and "python -m asyncio pstree") features could be used to read and write addresses in a privileged process if that process connected to a malicious or "infected" Python process via the remote debugging feature. This vulnerability requires persistently and repeatedly connecting to the process to be exploited, even after the connecting process crashes with high likelihood due to ASLR.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e7dc1a8950 advisory.

    A new prerelease of Python 3.15 with fixes to several CVEs.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2ee2d7abd5 advisory.

    New prerelease of Python 3.15 with several CVE fixes

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e2ada1fa1e advisory.

    New prerelease of Python 3.15, containing fixes to a few CVEs.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:19176 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):

    * cpython: wsgiref.headers.Headers allows header newline injection in Python (CVE-2026-0865)

    * cpython: CPython: Logging Bypass in Legacy .pyc File Handling (CVE-2026-2297)

    * cpython: Incomplete control character validation in http.cookies (CVE-2026-3644)

    * cpython: Stack overflow parsing XML with deeply nested DTD content models (CVE-2026-4224)

    * python: Python: Command-line option injection in webbrowser.open() via crafted URLs (CVE-2026-4519)

    * python: Python: HTTP header injection via CR/LF in proxy tunnel headers (CVE-2026-1502)

    * python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression     modules (CVE-2026-6100)

    * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API     (CVE-2026-4786)

    * python: Python: Information disclosure and arbitrary code execution via remote debugging with a     malicious process. (CVE-2026-5713)

    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.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:19019 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):

    * cpython: wsgiref.headers.Headers allows header newline injection in Python (CVE-2026-0865)

    * cpython: CPython: Logging Bypass in Legacy .pyc File Handling (CVE-2026-2297)

    * cpython: Incomplete control character validation in http.cookies (CVE-2026-3644)

    * cpython: Stack overflow parsing XML with deeply nested DTD content models (CVE-2026-4224)

    * python: Python: Command-line option injection in webbrowser.open() via crafted URLs (CVE-2026-4519)

    * python: Python: HTTP header injection via CR/LF in proxy tunnel headers (CVE-2026-1502)

    * python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression     modules (CVE-2026-6100)

    * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API     (CVE-2026-4786)

    * python: Python: Information disclosure and arbitrary code execution via remote debugging with a     malicious process. (CVE-2026-5713)

    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.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-97a8eb204a advisory.

    Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-5713, CVE-2026-6100


Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1fd21102d1 advisory.

    Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-5713, CVE-2026-6100

    ----

    New minor version of the alternate Python interpreter


Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-841a2250e4 advisory.

    Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-5713, CVE-2026-6100

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-382df0cfce advisory.

    Automatic update for python3.14-3.14.4-2.fc45.

    ##### **Changelog**

    ```
    * Thu Apr 16 2026 Charalampos Stratakis <cstratak@redhat.com> - 3.14.4-2
    - Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-5713, CVE-2026-6100     Resolves: rhbz#2457944, rhbz#2458224, rhbz#2458488, rhbz#2458016

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The profiling.sampling module (Python 3.15+) and asyncio introspection capabilities (3.14+, python -m     asyncio ps and python -m asyncio pstree) features could be used to read and write addresses in a     privileged process if that process connected to a malicious or infected Python process via the remote     debugging feature. This vulnerability requires persistently and repeatedly connecting to the process to be     exploited, even after the connecting process crashes with high likelihood due to ASLR. (CVE-2026-5713)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
316624	Fedora 42 : python3.15 (2026-e7dc1a8950)	Nessus	Fedora Local Security Checks	critical
316618	Fedora 44 : python3.15 (2026-2ee2d7abd5)	Nessus	Fedora Local Security Checks	critical
316613	Fedora 43 : python3.15 (2026-e2ada1fa1e)	Nessus	Fedora Local Security Checks	critical
315497	RHEL 9 : python3.14 (RHSA-2026:19176)	Nessus	Red Hat Local Security Checks	critical
315426	RHEL 10 : python3.14 (RHSA-2026:19019)	Nessus	Red Hat Local Security Checks	critical
311818	Fedora 43 : python3.14 (2026-97a8eb204a)	Nessus	Fedora Local Security Checks	critical
310584	Fedora 42 : python3.14 (2026-1fd21102d1)	Nessus	Fedora Local Security Checks	critical
310252	Fedora 44 : python3.14 (2026-841a2250e4)	Nessus	Fedora Local Security Checks	critical
307415	Fedora 45 : python3.14 (2026-382df0cfce)	Nessus	Fedora Local Security Checks	critical
306474	Linux Distros Unpatched Vulnerability : CVE-2026-5713	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-5713

medium

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical

critical

critical

medium