lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.

An update of the python3 package has been released.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1678 advisory.

    lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.
    (CVE-2026-41066)

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1679 advisory.

    lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.
    (CVE-2026-41066)

Tenable has extracted the preceding description block directly from the tested product 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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021468 advisory.

    lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.

Tenable has extracted the preceding description block directly from the Unity 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 SLES16 / SLES_SAP16 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:21603-1 advisory.

    This update for python-lxml fixes the following issue

    - CVE-2026-41066: Information disclosure via untrusted XML input leading to local file read (bsc#1263254).

Tenable has extracted the preceding description block directly from the SUSE 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 python-lxml installed on the remote host is prior to 3.2.1-4. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3297 advisory.

    lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.
    (CVE-2026-41066)

Tenable has extracted the preceding description block directly from the tested product 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-2026:0288 advisory.

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

    CVE-2026-41066:
    lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.

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 CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-41066 advisory.

  - lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.
    (CVE-2026-41066)

Note that Nessus has not tested for this issue 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.

  - lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the     two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read     local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or     resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.
    (CVE-2026-41066)

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

ID	Name	Product	Family	Severity
321579	Photon OS 5.0: Python3 PHSA-2026-5.0-0882	Nessus	PhotonOS Local Security Checks	high
315653	Amazon Linux 2023 : python3-lxml (ALAS2023-2026-1678)	Nessus	Amazon Linux Local Security Checks	high
315625	Amazon Linux 2023 : python3.13-lxml (ALAS2023-2026-1679)	Nessus	Amazon Linux Local Security Checks	high
315155	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python-lxml (UTSA-2026-021468)	Nessus	Unity Linux Local Security Checks	high
315048	SUSE SLES16 Security Update : python-lxml (SUSE-SU-2026:21603-1)	Nessus	SuSE Local Security Checks	high
314576	Amazon Linux 2 : python-lxml, --advisory ALAS2-2026-3297 (ALAS-2026-3297)	Nessus	Amazon Linux Local Security Checks	high
314510	TencentOS Server 4: python-lxml (TSSA-2026:0288)	Nessus	Tencent Local Security Checks	high
312358	Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-41066)	Nessus	Azure Linux Local Security Checks	high
310526	Linux Distros Unpatched Vulnerability : CVE-2026-41066	Nessus	Misc.	high

Detections

Analytics

CVE-2026-41066

high

Tenable Plugins

high

high

high

high

high

high

high

high

high