CVE-2026-50170
Angular: Information Leak via Default Caching of Credentialed Requests in HttpTransferCache
Description
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.
INFO
Published Date :
June 22, 2026, 6:16 p.m.
Last Modified :
July 9, 2026, 3:31 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-50170
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update @angular/common to a version later than 22.0.0-rc.2.
- Update @angular/common to a version later than 21.2.15.
- Update @angular/common to a version later than 20.3.22.
- Update @angular/common to a version later than 19.2.23.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-50170.
| URL | Resource |
|---|---|
| https://github.com/angular/angular/pull/67964 | Issue Tracking Patch |
| https://github.com/angular/angular/security/advisories/GHSA-q6f4-qqrg-jv6x | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-50170 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-50170
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-50170 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-50170 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
Jul. 09, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* versions up to (including) 18.2.14 *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: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:*:*:*:*:*:node.js:*:* versions from (including) 19.0.0 up to (excluding) 19.2.23 *cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* versions from (including) 20.0.0 up to (excluding) 20.3.22 *cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* versions from (including) 21.0.0 up to (excluding) 21.2.15 *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:next9:*:*:*:node.js:*:* *cpe:2.3:a:angular:angular:22.0.0:rc0:*:*:*:node.js:*:* *cpe:2.3:a:angular:angular:22.0.0:rc1:*:*:*:node.js:*:* Removed CPE Configuration OR *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions up to (including) 18.2.14 *cpe:2.3:a:angularjs:angularjs:22.0.0:next0:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next1:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next10:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next11:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next12:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next2:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next3:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next4:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next5:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next6:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next7:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next8:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next9:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:rc0:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:rc1:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions from (including) 19.0.0 up to (excluding) 19.2.23 *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions from (including) 20.0.0 up to (excluding) 20.3.22 *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.2.15 -
Initial Analysis by [email protected]
Jun. 30, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions up to (including) 18.2.14 *cpe:2.3:a:angularjs:angularjs:22.0.0:next0:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next1:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next10:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next11:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next12:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next2:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next3:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next4:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next5:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next6:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next7:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next8:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:next9:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:rc0:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:22.0.0:rc1:*:*:*:*:*:* *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions from (including) 19.0.0 up to (excluding) 19.2.23 *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions from (including) 20.0.0 up to (excluding) 20.3.22 *cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.2.15 Added Reference Type GitHub, Inc.: https://github.com/angular/angular/pull/67964 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/angular/angular/security/advisories/GHSA-q6f4-qqrg-jv6x Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 23, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-50170', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-23T16:00:13.983210Z'} -
New CVE Received by [email protected]
Jun. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'angular', 'product': 'angular', 'versions': [{'status': 'affected', 'version': '>= 22.0.0-next.0, < 22.0.0-rc.2'}, {'status': 'affected', 'version': '>= 21.0.0-next.0, < 21.2.15'}, {'status': 'affected', 'version': '>= 20.0.0-next.0, < 20.3.22'}, {'status': 'affected', 'version': '>= 19.0.0-next.0, < 19.2.23'}, {'status': 'affected', 'version': '<= 18.2.14'}]}] Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-524 Added Reference https://github.com/angular/angular/pull/67964 Added Reference https://github.com/angular/angular/security/advisories/GHSA-q6f4-qqrg-jv6x