Angular: Two-Way Property Binding Sanitization Bypass (XSS)
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, an issue in the @angular/compiler package allows bypassing DOM property sanitization through the use of two-way property bindings. Specifically, when a native DOM property that requires sanitization (such as innerHTML, srcdoc, src, href, data, or sandbox) is bound using the two-way binding syntax (e.g., [(innerHTML)]="value" or bindon-innerHTML="value"), the Angular template compiler failed to apply the appropriate schema-derived sanitizer resolution to the TwoWayProperty operation. As a result, native two-way DOM bindings were emitted without the required sanitizer function, whereas equivalent one-way bindings would be properly sanitized. This flaw enables an attacker who can control the value of a two-way bound sensitive property to bypass Angular's built-in sanitization logic, potentially leading to client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| angular | angular | >= 22.0.0-next.0 < 22.0.1; >= 21.0.0-next.0 < 21.2.17; >= 20.0.0-next.0 < 20.3.25; up to 19.2.25 | — | No fix listed | CNA |
| — | @angular/compiler (npm) | 22.0.0-next.0 to before 22.0.1 | 22.0.1 | Patch available | GHSA-58w9-8g37-x9v5 |
| — | @angular/compiler (npm) | 21.0.0-next.0 to before 21.2.17 | 21.2.17 | Patch available | GHSA-58w9-8g37-x9v5 |
| — | @angular/compiler (npm) | 20.0.0-next.0 to before 20.3.25 | 20.3.25 | Patch available | GHSA-58w9-8g37-x9v5 |
| — | @angular/compiler (npm) | up to 19.2.25 | — | No fix listed | GHSA-58w9-8g37-x9v5 |
- angular Vendorangular Affected >= 22.0.0-next.0 < 22.0.1; >= 21.0.0-next.0 < 21.2.17; >= 20.0.0-next.0 < 20.3.25; up to 19.2.25 Fixed in — No fix listed CNA
- @angular/compiler (npm) Vendor— Affected 22.0.0-next.0 to before 22.0.1 Fixed in 22.0.1 Patch available GHSA-58w9-8g37-x9v5
- @angular/compiler (npm) Vendor— Affected 21.0.0-next.0 to before 21.2.17 Fixed in 21.2.17 Patch available GHSA-58w9-8g37-x9v5
- @angular/compiler (npm) Vendor— Affected 20.0.0-next.0 to before 20.3.25 Fixed in 20.3.25 Patch available GHSA-58w9-8g37-x9v5
- @angular/compiler (npm) Vendor— Affected up to 19.2.25 Fixed in — No fix listed GHSA-58w9-8g37-x9v5
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* | up to 19.2.25; 20.0.0 to before 20.3.25; 21.0.0 to before 21.2.17; 22.0.0 to before 22.0.1 | Vulnerable | angular |
- cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* Versions up to 19.2.25; 20.0.0 to before 20.3.25; 21.0.0 to before 21.2.17; 22.0.0 to before 22.0.1 Vulnerable ·angular
Remediation
- Fix · GHSA-58w9-8g37-x9v5 @angular/compiler (npm) Fixed in 22.0.1 Advisory →
- Fix · GHSA-58w9-8g37-x9v5 @angular/compiler (npm) Fixed in 21.2.17 Advisory →
- Fix · GHSA-58w9-8g37-x9v5 @angular/compiler (npm) Fixed in 20.3.25 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apicurio Registry 3 | Affected | No fix yet: Fix deferred |
Not affected: 8 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Red Hat OpenStack Platform 16.2
- Red Hat Quay 3
- Red Hat Single Sign-On 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54265
- 2026-10-03 Alias added: GHSA-58w9-8g37-x9v5
References
Patch 2
Advisory 2
More Angular vulnerabilities
- TI-2026-60076 Angular: SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR CVSS 4.0HIGH 8.6
- TI-2026-60080 Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment Boundaries in Fallback Raw-Content Elements CVSS 4.0HIGH 8.6
- TI-2026-60078 Angular: SSR XSS via Unescaped Processing Instruction (<?...?>) Nodes in Fallback Raw-Content Elements CVSS 4.0HIGH 8.6
- TI-2025-37971 A reflected cross-site scripting (XSS) vulnerability in CKeditor v46.1.0 & Angular… CVSS 3.1MEDIUM 5.4
- TI-2026-36931 Angular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist Bypass CVSS 4.0HIGH 8.8
- TI-2026-34131 Angular: SSRF via Hostname Hijacking in @angular/platform-server CVSS 4.0HIGH 8.8
Sources
- CVE-2026-54265 · CVE Program
- CVE-2026-54265 · NVD
- FIRST EPSS
- GHSA-58w9-8g37-x9v5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-54265 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences