angular.js — security advisory
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.
- Products
- angular.js
- Affected versions
- 1.2.28-1ubuntu2, 1.2.28-1ubuntu2+esm1, 1.5.10-1, 1.5.10-1ubuntu0.1~esm1, 1.7.9-1, 1.7.9-1ubuntu0.1~esm1, 1.8.2-2, 1.8.2-2ubuntu0.1, 1.8.3-1, 1.8.3-1ubuntu0.24.04.1, 1.8.3-3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-50170
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:26 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-50170
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
Complete source record
{
"id": "8d0737fb140cd789d40b4f6015707564d77153e1785fc68daa3d514f19b1ddd1",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-50170",
"method": "structured",
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"title": "UBUNTU-CVE-2026-50170",
"summary": "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.",
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"modified": "2026-10-17T12:58:33.194054958Z",
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