BREW-KIMI-CLI-CVE-2024-52595 (GHSA-5JFW-GQ64-Q45F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:01 – Updated: 2026-09-10 00:17 – Source websiteImpact
The HTML Parser in lxml does not properly handle context-switching for special HTML tags such as <svg>, <math> and <noscript>. This behavior deviates from how web browsers parse and interpret such tags. Specifically, content in CSS comments is ignored by lxml_html_clean but may be interpreted differently by web browsers, enabling malicious scripts to bypass the cleaning process. This vulnerability could lead to Cross-Site Scripting (XSS) attacks, compromising the security of users relying on lxml_html_clean in default configuration for sanitizing untrusted HTML content.
Patches
Users employing the HTML cleaner in a security-sensitive context should upgrade to lxml 0.4.0, which addresses this issue.
Workarounds
As a temporary mitigation, users can configure lxml_html_clean with the following settings to prevent the exploitation of this vulnerability:
* remove_tags: Specify tags to remove - their content is moved to their parents' tags.
* kill_tags: Specify tags to be removed completely.
* allow_tags: Restrict the set of permissible tags, excluding context-switching tags like <svg>, <math> and <noscript>.
References
- https://github.com/fedora-python/lxml_html_clean/pull/19
- https://github.com/fedora-python/lxml_html_clean/pull/19/commits/c5d816f86eb3707d72a8ecf5f3823e0daa1b3808
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "lxml-html-clean",
"resource_purl": "pkg:pypi/lxml-html-clean@0.4.4",
"upstream_fixed_in": "0.4.0"
},
"package": {
"ecosystem": "Homebrew",
"name": "kimi-cli",
"purl": "pkg:brew/kimi-cli"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.48.0_1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/lxml-html-clean@0.4.4",
"name": "lxml-html-clean",
"resource": "lxml-html-clean",
"strategy": "registry",
"subject_version": "0.4.4"
}
]
},
"details": "### Impact\n\nThe HTML Parser in lxml does not properly handle context-switching for special HTML tags such as `\u003csvg\u003e`, `\u003cmath\u003e` and `\u003cnoscript\u003e`. This behavior deviates from how web browsers parse and interpret such tags. Specifically, content in CSS comments is ignored by lxml_html_clean but may be interpreted differently by web browsers, enabling malicious scripts to bypass the cleaning process. This vulnerability could lead to Cross-Site Scripting (XSS) attacks, compromising the security of users relying on lxml_html_clean in default configuration for sanitizing untrusted HTML content.\n\n### Patches\n\nUsers employing the HTML cleaner in a security-sensitive context should upgrade to lxml 0.4.0, which addresses this issue.\n\n### Workarounds\n\nAs a temporary mitigation, users can configure lxml_html_clean with the following settings to prevent the exploitation of this vulnerability:\n* `remove_tags`: Specify tags to remove - their content is moved to their parents\u0027 tags.\n* `kill_tags`: Specify tags to be removed completely.\n* `allow_tags`: Restrict the set of permissible tags, excluding context-switching tags like `\u003csvg\u003e`, `\u003cmath\u003e` and `\u003cnoscript\u003e`.\n\n### References\n\n* https://github.com/fedora-python/lxml_html_clean/pull/19\n* https://github.com/fedora-python/lxml_html_clean/pull/19/commits/c5d816f86eb3707d72a8ecf5f3823e0daa1b3808\n",
"id": "BREW-kimi-cli-CVE-2024-52595",
"modified": "2026-09-10T00:17:52Z",
"published": "2026-08-13T17:01:40Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-5jfw-gq64-q45f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52595"
},
{
"type": "WEB",
"url": "https://github.com/fedora-python/lxml_html_clean/pull/19"
},
{
"type": "WEB",
"url": "https://github.com/fedora-python/lxml_html_clean/commit/c5d816f86eb3707d72a8ecf5f3823e0daa1b3808"
},
{
"type": "PACKAGE",
"url": "https://github.com/fedora-python/lxml_html_clean"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/lxml-html-clean/PYSEC-2024-160.yaml"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H",
"type": "CVSS_V3"
}
],
"summary": "HTML Cleaner allows crafted scripts in special contexts like svg or math to pass through",
"upstream": [
"GHSA-5jfw-gq64-q45f",
"CVE-2024-52595",
"PYSEC-2024-160"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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