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vuln-cve/data/2026/92xxx/CVE-2026-92106.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-92106",
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"state": "PUBLISHED",
"assignerShortName": "EEF",
"dateReserved": "2026-09-21T12:15:01.326Z",
"datePublished": "2026-09-25T09:33:13.051Z",
"dateUpdated": "2026-09-25T12:41:30.597Z"
},
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:dashbitco:lazy_html:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"'Elixir.LazyHTML.Tree'",
"'Elixir.LazyHTML'",
"'Elixir.LazyHTML.NIF'"
],
"packageName": "lazy_html",
"packageURL": "pkg:hex/lazy_html",
"product": "lazy_html",
"programFiles": [
"lib/lazy_html/tree.ex",
"lib/lazy_html.ex",
"c_src/lazy_html.cpp"
],
"programRoutines": [
{
"name": "'Elixir.LazyHTML.Tree':to_html/2"
},
{
"name": "'Elixir.LazyHTML':to_html/2"
},
{
"name": "is_noescape_text_node"
}
],
"repo": "https://github.com/dashbitco/lazy_html",
"vendor": "dashbitco",
"versions": [
{
"lessThan": "0.1.13",
"status": "affected",
"version": "0.1.0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:dashbitco:lazy_html:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"'Elixir.LazyHTML.Tree'",
"'Elixir.LazyHTML'",
"'Elixir.LazyHTML.NIF'"
],
"packageName": "dashbitco/lazy_html",
"packageURL": "pkg:github/dashbitco/lazy_html",
"product": "lazy_html",
"programFiles": [
"lib/lazy_html/tree.ex",
"lib/lazy_html.ex",
"c_src/lazy_html.cpp"
],
"programRoutines": [
{
"name": "'Elixir.LazyHTML.Tree':to_html/2"
},
{
"name": "'Elixir.LazyHTML':to_html/2"
},
{
"name": "is_noescape_text_node"
}
],
"repo": "https://github.com/dashbitco/lazy_html",
"vendor": "dashbitco",
"versions": [
{
"lessThan": "f32c7fd6223225b68bc8691c78b6d4a77972f1d5",
"status": "affected",
"version": "1dee15746c024916b3110af8b168c2f3b3065fbd",
"versionType": "git"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:dashbitco:lazy_html:*:*:*:*:*:*:*:*",
"versionEndExcluding": "0.1.13",
"versionStartIncluding": "0.1.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Jonatan Kłosko"
},
{
"lang": "en",
"type": "analyst",
"value": "Jonatan Männchen / EEF"
},
{
"lang": "en",
"type": "analyst",
"value": "José Valim"
}
],
"dateAssigned": "2026-09-24T13:39:50.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dashbitco lazy_html allows mutation XSS via a parse and serialize round-trip of attacker-supplied HTML.</p>\n<p><code>LazyHTML.to_html/2</code> and <code>LazyHTML.Tree.to_html/2</code> decide whether to escape an element's text from its tag name alone. A <code>style</code> or <code>script</code> element inside SVG or MathML foreign content is parsed with character references decoded, but is serialized as an HTML raw-text element, so its text is emitted unescaped. Encoded markup such as <code>&amp;lt;/style&amp;gt;&amp;lt;img src=x onerror=...&amp;gt;</code> inside <code>&lt;svg&gt;&lt;style&gt;</code> therefore closes the element on re-parse and becomes live markup. Applications that parse untrusted HTML with lazy_html, filter the document or tree, and serialize it for display are affected, since the payload is a plain text node that no element or attribute filter sees.</p>\n<p>This issue affects lazy_html: from 0.1.0 before 0.1.13.</p>"
},
{
"base64": false,
"type": "text/markdown",
"value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dashbitco lazy_html allows mutation XSS via a parse and serialize round-trip of attacker-supplied HTML.\n\n`LazyHTML.to_html/2` and `LazyHTML.Tree.to_html/2` decide whether to escape an element's text from its tag name alone. A `style` or `script` element inside SVG or MathML foreign content is parsed with character references decoded, but is serialized as an HTML raw-text element, so its text is emitted unescaped. Encoded markup such as `&lt;/style&gt;&lt;img src=x onerror=...&gt;` inside `<svg><style>` therefore closes the element on re-parse and becomes live markup. Applications that parse untrusted HTML with lazy_html, filter the document or tree, and serialize it for display are affected, since the payload is a plain text node that no element or attribute filter sees.\n\nThis issue affects lazy_html: from 0.1.0 before 0.1.13."
}
],
"value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dashbitco lazy_html allows mutation XSS via a parse and serialize round-trip of attacker-supplied HTML.\n\nLazyHTML.to_html/2 and LazyHTML.Tree.to_html/2 decide whether to escape an element's text from its tag name alone. A style or script element inside SVG or MathML foreign content is parsed with character references decoded, but is serialized as an HTML raw-text element, so its text is emitted unescaped. Encoded markup such as &lt;/style&gt;&lt;img src=x onerror=...&gt; inside <svg><style> therefore closes the element on re-parse and becomes live markup. Applications that parse untrusted HTML with lazy_html, filter the document or tree, and serialize it for display are affected, since the payload is a plain text node that no element or attribute filter sees.\n\nThis issue affects lazy_html: from 0.1.0 before 0.1.13."
}
],
"impacts": [
{
"capecId": "CAPEC-63",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>An attacker who can submit HTML to an application that sanitizes it with lazy_html can run script in the browsers of users who view the sanitized output.</p>"
},
{
"base64": false,
"type": "text/markdown",
"value": "An attacker who can submit HTML to an application that sanitizes it with lazy_html can run script in the browsers of users who view the sanitized output."
}
],
"value": "An attacker who can submit HTML to an application that sanitizes it with lazy_html can run script in the browsers of users who view the sanitized output."
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 2.3,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF",
"dateUpdated": "2026-09-25T09:33:13.051Z"
},
"references": [
{
"name": "GitHub Advisory",
"tags": [
"related",
"vendor-advisory"
],
"url": "https://github.com/dashbitco/lazy_html/security/advisories/GHSA-8rqp-v692-v82q"
},
{
"name": "EEF CNA record for CVE-2026-92106",
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-92106.html"
},
{
"name": "OSV record EEF-CVE-2026-92106",
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-92106"
},
{
"name": "Introducing commit 1dee157 in dashbitco/lazy_html",
"tags": [
"related"
],
"url": "https://github.com/dashbitco/lazy_html/commit/1dee15746c024916b3110af8b168c2f3b3065fbd"
},
{
"name": "Fix commit f32c7fd in dashbitco/lazy_html",
"tags": [
"patch"
],
"url": "https://github.com/dashbitco/lazy_html/commit/f32c7fd6223225b68bc8691c78b6d4a77972f1d5"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "lazy_html serializes SVG and MathML style and script text unescaped, allowing mutation XSS"
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-25T12:35:42.717583Z",
"id": "CVE-2026-92106",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-09-25T12:41:30.597Z"
}
}
]
}
}
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