{"id":"UBUNTU-CVE-2026-50170","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, a vulnerability was discovered in @angular/common when Server-Side Rendering (SSR) and hydration are enabled. The HttpTransferCache utility optimizes hydration by caching outgoing HTTP requests performed during SSR and transferring the cached state to the client-side application via TransferState. However, the caching mechanism fails to inspect the withCredentials flag or the Cookie header of outgoing requests. As a result, credentialed, user-specific responses may be cached by default in the shared TransferState payload. When these responses are serialized into the HTML, any caching layer (such as a CDN, reverse proxy, or shared server cache) that caches the SSR-rendered HTML page could inadvertently cache and leak one user's private data to other users, leading to a high-severity information disclosure vulnerability. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.","modified":"2026-07-01T23:41:18.066519564Z","published":"2026-06-22T18:16:00Z","upstream":["CVE-2026-50170"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-50170"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-50170"}],"affected":[{"package":{"name":"angular.js","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.28-1ubuntu2","1.2.28-1ubuntu2+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjs-angularjs","binary_version":"1.2.28-1ubuntu2+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}},{"package":{"name":"angular.js","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.10-1","1.5.10-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjs-angularjs","binary_version":"1.5.10-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}},{"package":{"name":"angular.js","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.10-1","1.7.9-1","1.7.9-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.9-1ubuntu0.1~esm1","binary_name":"libjs-angularjs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}},{"package":{"name":"angular.js","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.2-2","1.8.2-2ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.2-2ubuntu0.1","binary_name":"libjs-angularjs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}},{"package":{"name":"angular.js","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.3-1","1.8.3-1ubuntu0.24.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjs-angularjs","binary_version":"1.8.3-1ubuntu0.24.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}},{"package":{"name":"angular.js","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.3-1","1.8.3-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.3-3","binary_name":"libjs-angularjs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}},{"package":{"name":"angular.js","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/angular.js?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.3-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.3-3","binary_name":"libjs-angularjs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50170.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}