{"cve":"CVE-2026-101895","nvd":{"published":"2026-10-14T15:17:03.370","modified":"2026-10-16T16:00:33.533","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":null,"cwes":["CWE-400","CWE-835"],"references":["https://github.com/angular/angular/commit/3db26e2544964d07a520836ad01f02f36ec88e25","https://github.com/angular/angular/commit/fc2e8fbc0bda2f5c11585e8a0cbd88c074f5e567","https://github.com/angular/angular/releases/tag/v20.3.31","https://github.com/angular/angular/releases/tag/v21.2.23","https://github.com/angular/angular/releases/tag/v22.1.6"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:59:28.494260111+00:00"},"epss":{"cve":"CVE-2026-101895","score":0.00872,"percentile":0.5861,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-f67j-2jqw-jpq7","url":"https://osv.dev/vulnerability/GHSA-f67j-2jqw-jpq7","summary":"Angular SSR: Denial of Service (DoS) via Infinite Loop on Malformed DOCTYPE","modified":"2026-09-28T21:45:03.879204328Z","packages":[{"ecosystem":"npm","name":"@angular/platform-server","purl":"pkg:npm/%40angular/platform-server","ranges":[">=22.0.0 <22.1.6"],"fixed":["22.1.6"]},{"ecosystem":"npm","name":"@angular/platform-server","purl":"pkg:npm/%40angular/platform-server","ranges":[">=21.0.0 <21.2.23"],"fixed":["21.2.23"]},{"ecosystem":"npm","name":"@angular/platform-server","purl":"pkg:npm/%40angular/platform-server","ranges":[">=20.0.0 <20.3.31"],"fixed":["20.3.31"]},{"ecosystem":"npm","name":"@angular/platform-server","purl":"pkg:npm/%40angular/platform-server","ranges":["<=19.2.25"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}