{"action":"Upgrade @angular/ssr to 19.2.21 or later.","affected":[{"fixed":"21.2.0-rc.1","introduced":"21.2.0-next.0"},{"fixed":"21.1.5","introduced":"21.0.0-next.0"},{"fixed":"20.3.17","introduced":"20.0.0-next.0"},{"fixed":"19.2.21","introduced":"0"}],"component":"@angular/ssr","cve_ids":["CVE-2026-27739"],"ecosystem":"npm","epss":0.00553,"exploited":false,"fixed_versions":["21.2.0-rc.1","21.1.5","20.3.17","19.2.21"],"ghsa_id":"GHSA-x288-3778-4hhx","id":"tcs_01M5KGGF4PYDEEN47WR12DSFH6","modified_at":"2026-02-25T22:47:57.558366Z","published_at":"2026-02-25T22:42:36Z","references":["https://osv.dev/vulnerability/GHSA-x288-3778-4hhx","https://github.com/angular/angular-cli/security/advisories/GHSA-x288-3778-4hhx","https://nvd.nist.gov/vuln/detail/CVE-2026-27739","https://github.com/angular/angular-cli/pull/32516","https://angular.dev/best-practices/security#preventing-server-side-request-forgery-ssrf","https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/SSRF","https://github.com/angular/angular-cli"],"severity":{"label":"critical","score":9.2},"sources":[{"source":"osv","source_id":"GHSA-x288-3778-4hhx","url":"https://osv.dev/vulnerability/GHSA-x288-3778-4hhx"},{"source":"nvd","source_id":"CVE-2026-27739","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27739"}],"summary":"Angular SSR is vulnerable to SSRF and Header Injection via request handling pipeline"}