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": [
{
"introduced": "0"
},
{
"last_affected": "19.2.25"
},
{
"introduced": "20.0.0"
},
{
"fixed": "20.3.31"
},
{
"introduced": "21.0.0"
},
{
"fixed": "21.2.23"
},
{
"introduced": "22.0.0"
},
{
"fixed": "22.1.6"
}
],
"source": [
"AFFECTED_FIELD",
"REFERENCES"
]
}