Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.31, 21.2.23, and 22.1.6, the @angular/platform-server DOM emulation parser can enter an infinite synchronous loop when Angular server-side rendering processes attacker-controlled HTML containing an incomplete DOCTYPE that ends with whitespace at end of input. In Domino lib/HTMLParser.js, after_doctype_name_state emits doctype and EOF tokens without advancing nextchar or leaving the fixed-lookahead state, so the scanner repeatedly handles the same EOF marker. A remote unauthenticated attacker can use this condition through server-side HTML parsing paths such as innerHTML binding to consume a Node.js SSR worker at full CPU, starve the event loop, and stop concurrent and subsequent requests. This issue is fixed in versions 20.3.31, 21.2.23, and 22.1.6.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-400",
"CWE-835"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101895.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "19.2.25"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "20.0.0"
},
{
"fixed": "20.3.31"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "21.0.0"
},
{
"fixed": "21.2.23"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "22.0.0"
},
{
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}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "3db26e2544964d07a520836ad01f02f36ec88e25"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "fc2e8fbc0bda2f5c11585e8a0cbd88c074f5e567"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v20.3.31",
"range": [
{
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}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v21.2.23",
"range": [
{
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}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v22.1.6",
"range": [
{
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}
],
"source": "REFERENCES_TAG"
}
]
}