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VulnerabilityPublished Updated

CVE-2026-32635: Core · Angular vulnerable to XSS in i18n attribute bindings

Affects @angular/coreSource GCVE Database

0
Authoritative record:CVE-2026-32635· High 8.6

Not known to be exploited · CVSS 8.6 High : upgrade to 22.0.0-next.3 soon.

Data as of 27 Oct 2026, 00:07 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 22.0.0-next.3, 21.2.4, 20.3.18 +1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
npm@angular/coreAffected
  • >=22.0.0-next.0 <22.0.0-next.3
Fixed in
  • 22.0.0-next.3
npm@angular/coreAffected
  • >=21.0.0-next.0 <21.2.4
Fixed in
  • 21.2.4
npm@angular/coreAffected
  • >=20.0.0-next.0.0.0 <20.3.18
Fixed in
  • 20.3.18
npm@angular/coreAffected
  • >=19.0.0-next.0 <19.2.20
Fixed in
  • 19.2.20
npm@angular/coreAffected
  • >=17.0.0-next.0 <=18.2.14
Fixed in–
npm@angular/compilerAffected
  • >=22.0.0-next.0 <22.0.0-next.3
Fixed in
  • 22.0.0-next.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

A Cross-Site Scripting (XSS) vulnerability has been identified in the Angular runtime and compiler. It occurs when the application uses a security-sensitive attribute (for example href on an anchor tag) together with Angular's ability to internationalize attributes. Enabling internationalization for the sensitive attribute by adding `i18n-<attribute>` name bypasses Angular's built-in sanitization mechanism, which when combined with a data binding to untrusted user-generated data can allow an attacker to inject a malicious script. The following example illustrates the issue: ```html <a href="{{maliciousUrl}}" i18n-href>Click me</a> ``` The following attributes have been confirmed to be vulnerable: - `action` - `background` - `cite` - `codebase` - `data` - `formaction` - `href` - `itemtype` - `longdesc` - `poster` - `src` - `xlink:href` ### Impact When exploited, this vulnerability allows an attacker to execute arbitrary code within the context of the vulnerable application's domain. This enables: - Session Hijacking: Stealing session cookies and authentication tokens. - Data Exfiltration: Capturing and transmitting sensitive user data. - Unauthorized Actions: Performing actions on behalf of the user. ### Attack Preconditions 1. The application must use a vulnerable version of Angular. 2. The application must bind unsanitized user input to one of the attributes mentioned above. 3. The bound value must be marked for internationalization via the presence of a `i18n-<name>` attribute on the same element. ### Patches - 22.0.0-next.3 - 21.2.4 - 20.3.18 - 19.2.20 ### Workarounds The primary workaround is to ensure that any data bound to the vulnerable attributes is **never sourced from untrusted user input** (e.g., database, API response, URL parameters) until the patch is applied, or when it is, it shouldn't be marked for internationalization. Alternatively, users can explicitly sanitize their attributes by passing them through Angular's `DomSanitizer`: ```ts import {Component, inject, SecurityContext} from '@angular/core'; import {DomSanitizer} from '@angular/platform-browser'; @Component({ template: ` <form action="{{url}}" i18n-action> <button>Submit</button> </form> `, }) export class App { url: string; constructor() { const dangerousUrl = 'javascript:alert(1)'; const sanitizer = inject(DomSanitizer); this.url = sanitizer.sanitize(SecurityContext.URL, dangerousUrl) || ''; } } ``` ### References - [Fix 1](https://github.com/angular/angular/pull/67541) - [Fix 2](https://github.com/angular/angular/pull/67561)

References

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