pysec-2021-852
Vulnerability from pysec
Published
2021-12-13 18:15
Modified
2021-12-16 19:24
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.

Aliases


To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lxml",
        "purl": "pkg:pypi/lxml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f2330237440df7e8f39c3ad1b1aa8852be3b27c0"
            },
            {
              "fixed": "12fa9669007180a7bb87d990c375cf91ca5b664a"
            }
          ],
          "repo": "https://github.com/lxml/lxml",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c"
            }
          ],
          "repo": "https://github.com/lxml/lxml#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.6.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9",
        "0.9.1",
        "0.9.2",
        "1.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.0.beta",
        "1.1",
        "1.1.1",
        "1.1.2",
        "1.1alpha",
        "1.1beta",
        "1.2",
        "1.2.1",
        "1.3",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "1.3beta",
        "2.0",
        "2.0.1",
        "2.0.10",
        "2.0.11",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.7",
        "2.0.8",
        "2.0.9",
        "2.0alpha1",
        "2.0alpha2",
        "2.0alpha3",
        "2.0alpha4",
        "2.0alpha5",
        "2.0alpha6",
        "2.0beta1",
        "2.0beta2",
        "2.1",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.1alpha1",
        "2.1beta1",
        "2.1beta2",
        "2.1beta3",
        "2.2",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.2.4",
        "2.2.5",
        "2.2.6",
        "2.2.7",
        "2.2.8",
        "2.2alpha1",
        "2.2beta1",
        "2.2beta2",
        "2.2beta3",
        "2.2beta4",
        "2.3",
        "2.3.1",
        "2.3.2",
        "2.3.3",
        "2.3.4",
        "2.3.5",
        "2.3.6",
        "2.3alpha1",
        "2.3alpha2",
        "2.3beta1",
        "3.0",
        "3.0.1",
        "3.0.2",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.1beta1",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.3.0",
        "3.3.0beta1",
        "3.3.0beta2",
        "3.3.0beta3",
        "3.3.0beta4",
        "3.3.0beta5",
        "3.3.1",
        "3.3.2",
        "3.3.3",
        "3.3.4",
        "3.3.5",
        "3.3.6",
        "3.4.0",
        "3.4.1",
        "3.4.2",
        "3.4.3",
        "3.4.4",
        "3.5.0",
        "3.5.0b1",
        "3.6.0",
        "3.6.1",
        "3.6.2",
        "3.6.3",
        "3.6.4",
        "3.7.0",
        "3.7.1",
        "3.7.2",
        "3.7.3",
        "3.8.0",
        "4.0.0",
        "4.1.0",
        "4.1.1",
        "4.2.0",
        "4.2.1",
        "4.2.2",
        "4.2.3",
        "4.2.4",
        "4.2.5",
        "4.2.6",
        "4.3.0",
        "4.3.1",
        "4.3.2",
        "4.3.3",
        "4.3.4",
        "4.3.5",
        "4.4.0",
        "4.4.1",
        "4.4.2",
        "4.4.3",
        "4.5.0",
        "4.5.1",
        "4.5.2",
        "4.6.0",
        "4.6.1",
        "4.6.2",
        "4.6.3",
        "4.6.4"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-43818",
    "GHSA-55x5-fj6c-h6m8"
  ],
  "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.",
  "id": "PYSEC-2021-852",
  "modified": "2021-12-16T19:24:01.272993Z",
  "published": "2021-12-13T18:15:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8"
    },
    {
      "type": "FIX",
      "url": "https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.