{"id":"CVE-2026-101895","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101895","generatedAt":"2026-10-27T22:46:42.840Z","title":"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…","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.","published":"2026-10-14T15:17:03.000Z","lastModified":"2026-10-16T16:00:34.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-400","CWE-835"],"affected":[],"epss":{"score":0.00872,"percentile":0.58614,"date":"2026-10-26","history":[{"date":"2026-10-15","score":0.00716,"percentile":0.52761}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-14T15:17:03.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-14T15:17:03.370Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/angular/angular/commit/3db26e2544964d07a520836ad01f02f36ec88e25","source":"security-advisories@github.com"},{"url":"https://github.com/angular/angular/commit/fc2e8fbc0bda2f5c11585e8a0cbd88c074f5e567","source":"security-advisories@github.com"},{"url":"https://github.com/angular/angular/releases/tag/v20.3.31","source":"security-advisories@github.com"},{"url":"https://github.com/angular/angular/releases/tag/v21.2.23","source":"security-advisories@github.com"},{"url":"https://github.com/angular/angular/releases/tag/v22.1.6","source":"security-advisories@github.com"},{"url":"https://github.com/angular/angular/security/advisories/GHSA-f67j-2jqw-jpq7","source":"security-advisories@github.com"},{"url":"https://github.com/angular/domino/commit/4d97473116d000e3fd4d6f75ec98cbd67576fa6f","source":"security-advisories@github.com"},{"url":"https://github.com/angular/angular/security/advisories/GHSA-f67j-2jqw-jpq7","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101895","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}