lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl: 3 vulnerabilities (highest severity is: 8.2)

[mend-bolt-for-github]

Vulnerable Library - lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

Library home page: https://files.pythonhosted.org/packages/30/c0/d0526314971fc661b083ab135747dc68446a3022686da8c16d25fcf6ef07/lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Path to dependency file: /blockchain/requirements.txt

Path to vulnerable library: /blockchain/requirements.txt

Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (lxml version)	Remediation Possible**
CVE-2021-43818	High	8.2	lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl	Direct	lxml - 4.6.5	❌
CVE-2026-41066	High	7.5	lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl	Direct	6.1.0	❌
CVE-2022-2309	Medium	5.3	lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl	Direct	lxml - 4.9.1	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2021-43818

Vulnerable Library - lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

Library home page: https://files.pythonhosted.org/packages/30/c0/d0526314971fc661b083ab135747dc68446a3022686da8c16d25fcf6ef07/lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Path to dependency file: /blockchain/requirements.txt

Path to vulnerable library: /blockchain/requirements.txt

Dependency Hierarchy:

• ❌ lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl (Vulnerable Library)

Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c

Found in base branch: main

Vulnerability Details

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.

Publish Date: 2021-12-13

URL: CVE-2021-43818

CVSS 3 Score Details (8.2)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: High
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-55x5-fj6c-h6m8

Release Date: 2021-12-13

Fix Resolution: lxml - 4.6.5

Step up your Open Source Security Game with Mend here

CVE-2026-41066

Vulnerable Library - lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

Library home page: https://files.pythonhosted.org/packages/30/c0/d0526314971fc661b083ab135747dc68446a3022686da8c16d25fcf6ef07/lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Path to dependency file: /blockchain/requirements.txt

Path to vulnerable library: /blockchain/requirements.txt

Dependency Hierarchy:

• ❌ lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl (Vulnerable Library)

Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c

Found in base branch: main

Vulnerability Details

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.

Publish Date: 2026-04-24

URL: CVE-2026-41066

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-vfmq-68hx-4jfw

Release Date: 2026-04-22

Fix Resolution: 6.1.0

Step up your Open Source Security Game with Mend here

CVE-2022-2309

Vulnerable Library - lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

Library home page: https://files.pythonhosted.org/packages/30/c0/d0526314971fc661b083ab135747dc68446a3022686da8c16d25fcf6ef07/lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl

Path to dependency file: /blockchain/requirements.txt

Path to vulnerable library: /blockchain/requirements.txt

Dependency Hierarchy:

• ❌ lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl (Vulnerable Library)

Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c

Found in base branch: main

Vulnerability Details

NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn't be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered.

Publish Date: 2022-07-05

URL: CVE-2022-2309

CVSS 3 Score Details (5.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-wrxv-2j5q-m38w

Release Date: 2022-07-05

Fix Resolution: lxml - 4.9.1

Step up your Open Source Security Game with Mend here

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