{"id":"CVE-2026-50184","aliases":["GHSA-95qp-cmmw-mgqv"],"url":"https://o3.security/vulnerability/CVE-2026-50184","summary":"Angular: Request Credential & Cache Policy Stripping in Angular Service Worker","details":"Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, an issue in the @angular/service-worker package compromises the integrity of request-policy enforcement during request reconstruction. When the Angular Service Worker intercepts network requests for matched assets, it reconstructs a new Request object using an internal helper function. During this reconstruction process, the helper function strips explicit client-defined safety parameters: the credentials configuration (such as credentials: 'omit') and the HTTP cache mode configuration (such as cache: 'no-store'). These are reverted back to standard browser-default parameters (credentials: 'same-origin' and default HTTP cache properties). This causes the browser to include active credentials (such as cookies or Authorization headers) on outbound requests where the client-side developer explicitly instructed they should be omitted, leading to potential session leaks. Additionally, it causes private or non-cacheable resources to be cached by the service worker's engine, making private page states accessible or persistent inside the client's local cache post-logout. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.","published":"2026-06-22T15:42:05.167Z","modified":"2026-08-12T03:51:46.880538770Z","cvss":null,"epss":{"score":0.00208,"percentile":0.10917,"asOf":"2026-09-01"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@angular/service-worker","fixedVersion":"22.0.0-rc.2"},{"ecosystem":"npm","name":"@angular/service-worker","fixedVersion":"21.2.15"},{"ecosystem":"npm","name":"@angular/service-worker","fixedVersion":"20.3.22"},{"ecosystem":"npm","name":"@angular/service-worker","fixedVersion":"19.2.23"},{"ecosystem":"npm","name":"@angular/service-worker","fixedVersion":null}],"fix":{"url":"https://github.com/angular/angular/pull/68904","label":"angular/angular#68904"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50184.json"},{"type":"ADVISORY","url":"https://github.com/angular/angular/security/advisories/GHSA-95qp-cmmw-mgqv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50184"},{"type":"FIX","url":"https://github.com/angular/angular/pull/68904"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:46.880538770Z"}}