CVE-2026-33397 Angular SSR Vulnerable to Protocol-Relative URL Injection via Single Backslash Bypass

The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in @angular/ssr due to an incomplete fix for CVE-2026-27738. Whil...

EUVD-2026-13897

The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in @angular/ssr due to an incomplete fix for CVE-2026-27738. Whil...

CVE-2026-33397 Angular SSR Vulnerable to Protocol-Relative URL Injection via Single Backslash Bypass

The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in @angular/ssr due to an incomplete fix for CVE-2026-27738. Whil...

CVE-2026-33397

The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in @angular/ssr due to an incomplete fix for CVE-2026-27738. Whil...

Cross-site Scripting (XSS)

Angular is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to internationalization of security-sensitive attributes bypassing Angular’s sanitization when combined with untrusted data binding, which allows an attacker to inject malicious scripts...

CVE-2026-33397: URL Redirection to Untrusted Site

The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in @angular/ssr due to an incomplete fix for CVE-2026-27738. Whil...

Angular input validation error vulnerability

Angular is an open-source development platform created by Angular. It is used to build mobile and desktop web applications using TypeScript/JavaScript and other languages. Versions of Angular prior to 22.0.0-next.2, 21.2.3, and 20.3.21 have a vulnerability related to input validation errors. This...

4itech-schematics (>=11.3.0-2, <=11.7.0-5), @4itech/schematics (11.7.0) +71 more potentially affected by CVE-2026-33672 via picomatch (3.0.1)

picomatch NPM version 3.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on picomatch and may be impacted: - 4itech-schematics =11.3.0-2, =10.0.0-alpha.1, =10.0.0-alpha.1, =10.0.0-alpha.1, =0.1700.0-rc.3, =0.1700.0-rc.3, =17.0.0-rc.3, =0.1700.0-rc.3,...

4itech-schematics (>=11.3.0-2, <=11.7.0-5), @4itech/schematics (11.7.0) +71 more potentially affected by CVE-2026-33672 via picomatch (3.0.1)

picomatch NPM version 3.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on picomatch and may be impacted: - 4itech-schematics =11.3.0-2, =10.0.0-alpha.1, =10.0.0-alpha.1, =10.0.0-alpha.1, =0.1700.0-rc.3, =0.1700.0-rc.3, =17.0.0-rc.3, =0.1700.0-rc.3,...

4itech-schematics (>=11.3.0-2, <=11.7.0-5), @4itech/schematics (11.7.0) +71 more potentially affected by CVE-2026-33672 via picomatch (3.0.1)

picomatch NPM version 3.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on picomatch and may be impacted: - 4itech-schematics =11.3.0-2, =10.0.0-alpha.1, =10.0.0-alpha.1, =10.0.0-alpha.1, =0.1700.0-rc.3, =0.1700.0-rc.3, =17.0.0-rc.3, =0.1700.0-rc.3,...

4itech-schematics (>=11.3.0-2, <=11.7.0-5), @4itech/schematics (11.7.0) +71 more potentially affected by CVE-2026-33671 via picomatch (3.0.1)

picomatch NPM version 3.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on picomatch and may be impacted: - 4itech-schematics =11.3.0-2, =10.0.0-alpha.1, =10.0.0-alpha.1, =10.0.0-alpha.1, =0.1700.0-rc.3, =0.1700.0-rc.3, =17.0.0-rc.3, =0.1700.0-rc.3,...

4itech-schematics (>=11.3.0-2, <=11.7.0-5), @4itech/schematics (11.7.0) +71 more potentially affected by CVE-2026-33671 via picomatch (3.0.1)

picomatch NPM version 3.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on picomatch and may be impacted: - 4itech-schematics =11.3.0-2, =10.0.0-alpha.1, =10.0.0-alpha.1, =10.0.0-alpha.1, =0.1700.0-rc.3, =0.1700.0-rc.3, =17.0.0-rc.3, =0.1700.0-rc.3,...

Cross-site Scripting (XSS)

@angular/compiler is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to an incomplete security schema in the template compiler that fails to properly classify certain URL attributes, which allows an attacker to bypass sanitization and inject malicious scripts...

create-momentum-app (>=0.1.2, <=0.5.11), foliokit (0.0.0) potentially affected by CVE-2026-27738 +1 more via @angular/ssr (>=21.1.2, <=21.2.0)

@angular/ssr NPM version =21.1.2, =0.1.2, =0.5.11 - foliokit 0.0.0 Source cves: CVE-2026-27738, CVE-2026-33397 Source advisory: SNYK:JS-ANGULARSSR-15701178...

@hmcts/media-viewer (>=4.2.16-exui-4425, <=4.2.16-exui-4425-rel1) potentially affected by CVE-2026-27738 +1 more via @angular/ssr (20.3.18)

@angular/ssr NPM version 20.3.18 is affected by a known vulnerability. The following packages have a transitive dependency on @angular/ssr and may be impacted: - @hmcts/media-viewer =4.2.16-exui-4425, =4.2.16-exui-4425-rel1 Source cves: CVE-2026-27738, CVE-2026-33397 Source advisory:...

create-momentum-app (>=0.1.2, <=0.5.11), foliokit (0.0.0) potentially affected by CVE-2026-33397 via @angular/ssr (>=21.1.2, <=21.2.0)

@angular/ssr NPM version =21.1.2, =0.1.2, =0.5.11 - foliokit 0.0.0 Source cves: CVE-2026-33397 Source advisory: GHSA-VFX2-HV2G-XJ5F...

@hmcts/media-viewer (>=4.2.16-exui-4425, <=4.2.16-exui-4425-rel1) potentially affected by CVE-2026-33397 via @angular/ssr (20.3.18)

@angular/ssr NPM version 20.3.18 is affected by a known vulnerability. The following packages have a transitive dependency on @angular/ssr and may be impacted: - @hmcts/media-viewer =4.2.16-exui-4425, =4.2.16-exui-4425-rel1 Source cves: CVE-2026-33397 Source advisory: GHSA-VFX2-HV2G-XJ5F...

create-momentum-app (>=0.1.2, <=0.5.11), foliokit (0.0.0) potentially affected by CVE-2026-33397 via @angular/ssr (>=21.1.2, <=21.2.0)

@angular/ssr NPM version =21.1.2, =0.1.2, =0.5.11 - foliokit 0.0.0 Source cves: CVE-2026-33397 Source advisory: OSV:GHSA-VFX2-HV2G-XJ5F...

@hmcts/media-viewer (>=4.2.16-exui-4425, <=4.2.16-exui-4425-rel1) potentially affected by CVE-2026-33397 via @angular/ssr (20.3.18)

@angular/ssr NPM version 20.3.18 is affected by a known vulnerability. The following packages have a transitive dependency on @angular/ssr and may be impacted: - @hmcts/media-viewer =4.2.16-exui-4425, =4.2.16-exui-4425-rel1 Source cves: CVE-2026-33397 Source advisory: OSV:GHSA-VFX2-HV2G-XJ5F...

Open Redirect

Overview @angular/ssr is a the Angular server side rendering utilities. Affected versions of this package are vulnerable to Open Redirect via the internal URL processing logic when handling the X-Forwarded-Prefix header. An attacker can cause users to be redirected to arbitrary external domains b...