An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted script to the WSGIServer component.

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4377 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4377-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Paride Legovini     November 24, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : python-gevent     Version        : 20.9.0-2+deb11u1     CVE ID         : CVE-2023-41419

    An issue in Gevent before version 23.9.0 allows a remote attacker to     escalate privileges via a crafted script to the WSGIServer component.

    For Debian 11 bullseye, this problem has been fixed in version     20.9.0-2+deb11u1.

    We recommend that you upgrade your python-gevent packages.

    For the detailed security status of python-gevent please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/python-gevent

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

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

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

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2025:0214 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-41419:
    An issue in Gevent Gevent before version 23.9.1 allows a remote attacker to escalate privileges via a     crafted script to the WSGIServer component.

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

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

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0899 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2023-41419:
    An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted     script to the WSGIServer component.

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

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

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2024:0161 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2023-41419:
    An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted     script to the WSGIServer component.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

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

An update of the python3 package has been released.

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

  - An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted     script to the WSGIServer component. (CVE-2023-41419)

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

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2024:8834 advisory.

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

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

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

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:8834 advisory.

    gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level     synchronous API on top of libevent event loop.  Features include:    * convenient API around greenlets   *     familiar synchronization primitives (gevent.event, gevent.queue)   * socket module that cooperates   *     WSGI server on top of libevent-http   * DNS requests done through libevent-dns   * monkey patching utility     to get pure Python modules to cooperate

    Security Fix(es):

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2024-8834 advisory.

    [1.2.2-5]
    - Avoid printing TypeError traceback
    - gevent.pywsgi: Much improved handling of chunk trailers       Backport fix for CVE-2023-41419       Resolves: RHEL-17078

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

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

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:8105 advisory.

    gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level     synchronous API on top of libevent event loop.  Features include:    * convenient API around greenlets   *     familiar synchronization primitives (gevent.event, gevent.queue)   * socket module that cooperates   *     WSGI server on top of libevent-http   * DNS requests done through libevent-dns   * monkey patching utility     to get pure Python modules to cooperate

    Security Fix(es):

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:8102 advisory.

    gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level     synchronous API on top of libevent event loop.  Features include:    * convenient API around greenlets   *     familiar synchronization primitives (gevent.event, gevent.queue)   * socket module that cooperates   *     WSGI server on top of libevent-http   * DNS requests done through libevent-dns   * monkey patching utility     to get pure Python modules to cooperate

    Security Fix(es):

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:7785 advisory.

    gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level     synchronous API on top of libevent event loop.  Features include:    * convenient API around greenlets   *     familiar synchronization primitives (gevent.event, gevent.queue)   * socket module that cooperates   *     WSGI server on top of libevent-http   * DNS requests done through libevent-dns   * monkey patching utility     to get pure Python modules to cooperate

    Security Fix(es):

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:7421 advisory.

    gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level     synchronous API on top of libevent event loop.  Features include:    * convenient API around greenlets   *     familiar synchronization primitives (gevent.event, gevent.queue)   * socket module that cooperates   *     WSGI server on top of libevent-http   * DNS requests done through libevent-dns   * monkey patching utility     to get pure Python modules to cooperate

    Security Fix(es):

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2023:7438 advisory.

    gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level     synchronous API on top of libevent event loop.

    Security Fix(es):

    * python-gevent: privilege escalation via a crafted script to the WSGIServer component (CVE-2023-41419)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:4091-1 advisory.

  - An issue in Gevent before version 23.9.0 allows a remote attacker to escalate privileges via a crafted     script to the WSGIServer component. (CVE-2023-41419)

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

ID	Name	Product	Family	Severity
277933	Debian dla-4377 : python-gevent-doc - security update	Nessus	Debian Local Security Checks	critical
276193	TencentOS Server 4: python-gevent (TSSA-2025:0214)	Nessus	Tencent Local Security Checks	critical
239438	TencentOS Server 3: python-gevent (TSSA-2024:0899)	Nessus	Tencent Local Security Checks	critical
236393	Alibaba Cloud Linux 3 : 0161: python-gevent (ALINUX3-SA-2024:0161)	Nessus	Alibaba Cloud Linux Local Security Checks	critical
234436	Photon OS 4.0: Python3 PHSA-2025-4.0-0730	Nessus	PhotonOS Local Security Checks	medium
227079	Linux Distros Unpatched Vulnerability : CVE-2023-41419	Nessus	Misc.	critical
210437	AlmaLinux 8 : python-gevent (ALSA-2024:8834)	Nessus	Alma Linux Local Security Checks	critical
210417	RHEL 8 : python-gevent (RHSA-2024:8834)	Nessus	Red Hat Local Security Checks	critical
210375	Oracle Linux 8 : python-gevent (ELSA-2024-8834)	Nessus	Oracle Linux Local Security Checks	critical
209019	RHEL 8 : python-gevent (RHSA-2024:8105)	Nessus	Red Hat Local Security Checks	critical
209017	RHEL 8 : python-gevent (RHSA-2024:8102)	Nessus	Red Hat Local Security Checks	critical
208255	RHEL 8 : python-gevent (RHSA-2024:7785)	Nessus	Red Hat Local Security Checks	critical
207969	RHEL 8 : python-gevent (RHSA-2024:7421)	Nessus	Red Hat Local Security Checks	critical
194393	RHEL 9 : Red Hat OpenStack Platform 17.1.1 (python-gevent) (RHSA-2023:7438)	Nessus	Red Hat Local Security Checks	critical
183277	SUSE SLED15 / SLES15 Security Update : python-gevent (SUSE-SU-2023:4091-1)	Nessus	SuSE Local Security Checks	critical

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CVE-2023-41419

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