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, an issue in the @angular/service-worker package compromises the integrity of request-policy enforcement during request reconstruction. When the Angular Service Worker intercepts network requests for matched assets, it reconstructs a new Request object using an internal helper function. During this reconstruction process, the helper function strips explicit client-defined safety parameters: the credentials configuration (such as credentials: 'omit') and the HTTP cache mode configuration (such as cache: 'no-store'). These are reverted back to standard browser-default parameters (credentials: 'same-origin' and default HTTP cache properties). This causes the browser to include active credentials (such as cookies or Authorization headers) on outbound requests where the client-side developer explicitly instructed they should be omitted, leading to potential session leaks. Additionally, it causes private or non-cacheable resources to be cached by the service worker's engine, making private page states accessible or persistent inside the client's local cache post-logout. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.1, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, limited integrity, 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.
2026-06-22T18:16:42.783
2026-07-09T15:32:15.657
Analyzed
CVSSv3.1: 6.1 (MEDIUM)
| 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.