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 Rocky Linux 10.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_19019 advisory.

    * 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)

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_19176 advisory.

    * 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)

Tenable has extracted the preceding description block directly from the CIQ 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 Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-19019 advisory.

    - Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-5713, CVE-2026-6100     Resolves: RHEL-168121, RHEL-167887
    - Security fixes for CVE-2026-2297, CVE-2026-3644, CVE-2026-4224, CVE-2026-0865     Related: RHEL-168121, RHEL-167887
    - Security fix for CVE-2026-4519     Resolves: RHEL-158114
    - Security fixes for CVE-2025-11468, CVE-2026-0672, CVE-2026-0865,     CVE-2025-15282, CVE-2026-1299, CVE-2025-15366, CVE-2025-15367     Resolves: RHEL-144855, RHEL-143058, RHEL-143111

Tenable has extracted the preceding description block directly from the Oracle 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 Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8509-1 advisory.

    It was discovered that Python incorrectly normalized paths in the tarfile module. An attacker could     possibly use this issue to bypass path restrictions. This issue only affected Ubuntu 22.04 LTS and Ubuntu     24.04 LTS. (CVE-2025-13462)

    It was discovered that Python's HTMLParser incorrectly handled certain malformed HTML input. An attacker     could possibly use this issue to cause Python to crash, resulting in a denial of service. This issue only     affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-69534)

    It was discovered that Python's email module incorrectly quoted newlines in headers. An attacker could     possibly use this issue to inject arbitrary email headers. This issue only affected Ubuntu 22.04 LTS and     Ubuntu 24.04 LTS. (CVE-2026-1299)

    It was discovered that Python's http.client module did not properly sanitize carriage return and linefeed     characters when handling HTTP CONNECT tunnel request headers. An attacker could possibly use this issue to     inject arbitrary HTTP headers. (CVE-2026-1502)

    It was discovered that Python's importlib module did not generate an audit event when loading legacy .pyc     files. An attacker could possibly use this issue to bypass auditing mechanisms. This issue only affected     Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-2297)

    It was discovered that Python's unicodedata.normalize() function had incorrect algorithmic complexity. An     attacker could possibly use this issue to cause Python to consume excessive resources, leading to a denial     of service. (CVE-2026-3276)

    It was discovered that Python's http.cookies module incorrectly handled control characters in certain     cookie operations. An attacker could possibly use this issue to inject arbitrary content. This issue only     affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-3644)

    It was discovered that the Python pyexpat module was vulnerable to unbounded recursion in the Expat XML     parser. An attacker could possibly use this issue to cause Python to crash, resulting in a denial of     service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-4224)

    It was discovered that Python's webbrowser module accepted leading dashes in URLs, which could be     interpreted as command-line options. An attacker could possibly use this issue to execute arbitrary     commands. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-4519)

    It was discovered that Python incorrectly handled webbrowser.open() handlers. An attacker could possibly     use this issue to execute arbitrary commands. (CVE-2026-4786)

    It was discovered that Python's remote debugging module did not properly validate offset tables when     loading debug information. An attacker could possibly use this issue to cause Python to crash or execute     arbitrary code. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-5713)

    It was discovered that Python's http.cookies module incorrectly escaped values in the js_output() method.
    An attacker could possibly use this issue to inject arbitrary JavaScript. (CVE-2026-6019)

    It was discovered that Python's lzma, bz2, and gzip decompressor objects had a use-after-free     vulnerability. An attacker could possibly use this issue to cause Python to crash or execute arbitrary     code. (CVE-2026-6100)

    It was discovered that Python's tarfile module did not properly validate link targets when using the data     filter. An attacker could possibly use this issue to bypass path restrictions. This issue only affected     Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-7774)

    It was discovered that the fix for CVE-2021-4189 in Python's ftplib module was incomplete, allowing PASV     responses to be used in ftplib.ftpcp(). An attacker could possibly use this issue to perform server-side     request forgery attacks. (CVE-2026-8328)

    It was discovered that Python's bz2 module allowed reuse of a BZ2Decompressor object after a decompression     error. An attacker could possibly use this issue to cause Python to crash or execute arbitrary code.
    (CVE-2026-9669)

Tenable has extracted the preceding description block directly from the Ubuntu 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 Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-19176 advisory.

    - Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-5713, CVE-2026-6100     Resolves: RHEL-167918, RHEL-168160
    - Security fixes for CVE-2026-2297, CVE-2026-3644, CVE-2026-4224, CVE-2026-0865     Related: RHEL-167918, RHEL-168160
    - Security fix for CVE-2026-4519     Resolves: RHEL-158115
    - Security fixes for CVE-2025-11468, CVE-2026-0672, CVE-2026-0865,     CVE-2025-15282, CVE-2026-1299, CVE-2025-15366, CVE-2025-15367     Resolves: RHEL-144896, RHEL-143115, RHEL-143173

Tenable has extracted the preceding description block directly from the Oracle 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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1774 advisory.

    The tarfile module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while     processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a     crafted tar archive being misinterpreted by the tarfile module compared to other implementations.
    (CVE-2025-13462)

    CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host. (CVE-2026-1502)

    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)

    http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes  for JavaScript     string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated     script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.
    (CVE-2026-6019)

    `xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding     protection, which allows a crafted XML document to trigger hash flooding.\\r\\n\\r\\nFully mitigating this     vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch. (CVE-2026-7210)

Tenable has extracted the preceding description block directly from the tested product 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 RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19176 advisory.

    * 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)

Tenable has extracted the preceding description block directly from the RockyLinux 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 RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19019 advisory.

    * 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)

Tenable has extracted the preceding description block directly from the RockyLinux 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-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	Type	Severity
356650	Rocky Linux 10.2 [CIQ] Security Update: python3.14 / python3.14-debug / python3.14-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_19019)	Nessus	Rocky Linux Local Security Checks	Local	critical
356236	Rocky Linux 9 [CIQ] Security Update: python3.14 / python3.14-debug / python3.14-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_19176)	Nessus	Rocky Linux Local Security Checks	Local	critical
327059	Oracle Linux 10 : python3.14 (ELSA-2026-19019)	Nessus	Oracle Linux Local Security Checks	Local	critical
325428	Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : Python vulnerabilities (USN-8509-1)	Nessus	Ubuntu Local Security Checks	Local	critical
322193	Oracle Linux 9 : python3.14 (ELSA-2026-19176)	Nessus	Oracle Linux Local Security Checks	Local	critical
319867	Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1774)	Nessus	Amazon Linux Local Security Checks	Local	medium
318031	RockyLinux 9 : python3.14 (RLSA-2026:19176)	Nessus	Rocky Linux Local Security Checks	Local	critical
317973	RockyLinux 10 : python3.14 (RLSA-2026:19019)	Nessus	Rocky Linux Local Security Checks	Local	critical
316624	Fedora 42 : python3.15 (2026-e7dc1a8950)	Nessus	Fedora Local Security Checks	Local	critical
316618	Fedora 44 : python3.15 (2026-2ee2d7abd5)	Nessus	Fedora Local Security Checks	Local	critical
316613	Fedora 43 : python3.15 (2026-e2ada1fa1e)	Nessus	Fedora Local Security Checks	Local	critical
315497	RHEL 9 : python3.14 (RHSA-2026:19176)	Nessus	Red Hat Local Security Checks	Local	critical
315426	RHEL 10 : python3.14 (RHSA-2026:19019)	Nessus	Red Hat Local Security Checks	Local	critical
311818	Fedora 43 : python3.14 (2026-97a8eb204a)	Nessus	Fedora Local Security Checks	Local	critical
310584	Fedora 42 : python3.14 (2026-1fd21102d1)	Nessus	Fedora Local Security Checks	Local	critical
310252	Fedora 44 : python3.14 (2026-841a2250e4)	Nessus	Fedora Local Security Checks	Local	critical
307415	Fedora 45 : python3.14 (2026-382df0cfce)	Nessus	Fedora Local Security Checks	Local	critical
306474	Linux Distros Unpatched Vulnerability : CVE-2026-5713	Nessus	Misc.	Local	medium

Detections

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CVE-2026-5713

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