Answer in brief
CVE-2026-88056 records a High severity (CVSS 0.0) vulnerability in Angular: SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR. The current sources do not mark it as known exploited. The current feed maps angular/angular (generic), @angular/platform-server (npm), @angular/platform-server (npm), @angular/platform-server (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 0.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps angular/angular (generic), @angular/platform-server (npm), @angular/platform-server (npm), @angular/platform-server (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| angular/angulargeneric | <=19.2.25 || >=20.0.0 <20.3.30 || >=21.0.0 <21.2.22 || >=22.0.0 <22.1.4 | 20.3.30, 21.2.22, 22.1.4 |
| @angular/platform-servernpm | >=22.0.0,<22.1.4 | 22.1.4 |
| @angular/platform-servernpm | <=19.2.25 | Not reported |
| @angular/platform-servernpm | >=21.0.0,<21.2.22 | 21.2.22 |
| @angular/platform-servernpm | >=20.0.0,<20.3.30 | 20.3.30 |
Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular Server-Side Rendering in @angular/platform-server processes user-controlled resource or request URLs through HttpClient after application code validates them with WHATWG URL parsing. The resolveUrl and parseUrl utilities called String.prototype.trim(), which removed leading Unicode whitespace such as U+00A0 or U+FEFF after the input passed a same-origin check, converting a relative path into a protocol-relative attacker-controlled URL. In affected applications that attach sensitive server-side credentials such as Authorization headers to approved requests, relativeUrlsTransformerInterceptorFn then dispatched the request to the attacker-controlled origin, causing SSRF and credential disclosure. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.
Quoted source text, attributed separately from HOL analysis.