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.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 1 product from angular organizations running these solutions should prioritize assessment and patching.
Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2026-06-22T18:16:42.403
2026-07-09T15:31:59.043
Analyzed
CVSSv3.1: 7.5 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | angular | angular | ≤ 18.2.14 | Yes |
| Application | angular | angular | < 19.2.23 | Yes |
| Application | angular | angular | < 20.3.22 | Yes |
| Application | angular | angular | < 21.2.15 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
| Application | angular | angular | 22.0.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For angular's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.