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_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50170.json",
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-524"
]
}{
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"cpe": [
"cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next0:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next1:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next10:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next11:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next12:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next2:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next3:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next4:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next5:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next6:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next7:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next8:*:*:*:node.js:*:*",
"cpe:2.3:a:angular:angular:22.0.0:next9:*:*:*:node.js:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "18.2.14"
},
{
"introduced": "19.0.0"
},
{
"fixed": "19.2.23"
},
{
"introduced": "20.0.0"
},
{
"fixed": "20.3.22"
},
{
"introduced": "21.0.0"
},
{
"fixed": "21.2.15"
},
{
"introduced": "22.0.0-next0"
},
{
"last_affected": "22.0.0-next0"
},
{
"introduced": "22.0.0-next1"
},
{
"last_affected": "22.0.0-next1"
},
{
"introduced": "22.0.0-next10"
},
{
"last_affected": "22.0.0-next10"
},
{
"introduced": "22.0.0-next11"
},
{
"last_affected": "22.0.0-next11"
},
{
"introduced": "22.0.0-next12"
},
{
"last_affected": "22.0.0-next12"
},
{
"introduced": "22.0.0-next2"
},
{
"last_affected": "22.0.0-next2"
},
{
"introduced": "22.0.0-next3"
},
{
"last_affected": "22.0.0-next3"
},
{
"introduced": "22.0.0-next4"
},
{
"last_affected": "22.0.0-next4"
},
{
"introduced": "22.0.0-next5"
},
{
"last_affected": "22.0.0-next5"
},
{
"introduced": "22.0.0-next6"
},
{
"last_affected": "22.0.0-next6"
},
{
"introduced": "22.0.0-next7"
},
{
"last_affected": "22.0.0-next7"
},
{
"introduced": "22.0.0-next8"
},
{
"last_affected": "22.0.0-next8"
},
{
"introduced": "22.0.0-next9"
},
{
"last_affected": "22.0.0-next9"
}
]
}