CVE-2026-27739-POC

-CVE-2026-27739-poc curl -H "X-Forwarded-For: http://169.254.169.254/latest/meta-data/" self.target 2. Header Injection via Prototype Pollution CVSS: 7.5 Description : Angular SSR processes unsafe query parameters affecting prototype chain Impact : Request header manipulation, potential SSRF...

EUVD-2026-91778

Angular SSR: Path Traversal to Sibling Directories in CommonEngine on Windows...

GHSA-7G7C-H8RR-7P6Q Angular SSR: Path Traversal to Sibling Directories in CommonEngine on Windows

A Path Traversal vulnerability exists in the prerendered SSG page retrieval logic of CommonEngine in @angular/ssr/node and @angular/ssr in earlier versions. When deployed on Windows, an attacker can craft a request path with backslash directory traversal sequences that causes CommonEngine to serv...

@hmcts/ccd-case-ui-toolkit (>=7.3.49-4369, <=7.3.51), @hmcts/media-viewer (>=4.2.16-4435, <=4.2.17) potentially affected by CVE-2026-104871 via @angular/ssr (>=20.3.18, <=20.3.24)

@angular/ssr NPM version =20.3.18, =7.3.49-4369, =4.2.16-4435, =4.2.17 Source cves: CVE-2026-104871 Source advisory: GHSA-7G7C-H8RR-7P6Q...

3d-card (0.0.2), @cosla/sensemaking-web-ui (>=1.0.5, <=1.0.9) +18 more potentially affected by CVE-2026-104871 via @angular/ssr (>=19.0.5, <=19.2.27)

@angular/ssr NPM version =19.0.5, =1.0.5, =19.0.0-beta.1, =0.30.0, =0.30.0, =19.0.0-alpha.20, =0.0.2, =19.1.0, =16.0.0, =0.0.0, =0.0.0, =0.0.5 - mat-typeahead-library-custom123 0.0.0 and more Source cves: CVE-2026-104871 Source advisory: GHSA-7G7C-H8RR-7P6Q...

@hmcts/ccd-case-ui-toolkit (>=7.3.49-4369, <=7.3.51), @hmcts/media-viewer (>=4.2.16-4435, <=4.2.17) potentially affected by CVE-2026-104871 via @angular/ssr (>=20.3.18, <=20.3.24)

@angular/ssr NPM version =20.3.18, =7.3.49-4369, =4.2.16-4435, =4.2.17 Source cves: CVE-2026-104871 Source advisory: OSV:GHSA-7G7C-H8RR-7P6Q...

Angular SSR: Path Traversal to Sibling Directories in CommonEngine on Windows

A Path Traversal vulnerability exists in the prerendered SSG page retrieval logic of CommonEngine in @angular/ssr/node and @angular/ssr in earlier versions. When deployed on Windows, an attacker can craft a request path with backslash directory traversal sequences that causes CommonEngine to serv...

3d-card (0.0.2), @cosla/sensemaking-web-ui (>=1.0.5, <=1.0.9) +18 more potentially affected by CVE-2026-104871 via @angular/ssr (>=19.0.5, <=19.2.27)

@angular/ssr NPM version =19.0.5, =1.0.5, =19.0.0-beta.1, =0.30.0, =0.30.0, =19.0.0-alpha.20, =0.0.2, =19.1.0, =16.0.0, =0.0.0, =0.0.0, =0.0.5 - mat-typeahead-library-custom123 0.0.0 and more Source cves: CVE-2026-104871 Source advisory: OSV:GHSA-7G7C-H8RR-7P6Q...

Directory Traversal

Overview @angular/ssr is a the Angular server side rendering utilities. Affected versions of this package are vulnerable to Directory Traversal in the prerendered page lookup of CommonEngine in packages/angular/ssr/node/src/common-engine/common-engine.ts, which confirms containment with...

@hmcts/ccd-case-ui-toolkit (>=7.3.49-4369, <=7.3.51), @hmcts/media-viewer (>=4.2.16-4435, <=4.2.17) potentially affected by CVE-2026-104871 via @angular/ssr (>=20.3.18, <=20.3.24)

@angular/ssr NPM version =20.3.18, =7.3.49-4369, =4.2.16-4435, =4.2.17 Source cves: CVE-2026-104871 Source advisory: SNYK:JS-ANGULARSSR-20417147...

CVE-2026-104871

The Angular SSR is a server-rise rendering tool for Angular applications. Prior to versions 20.3.36, 21.2.23, and 22.1.7, the CommonEngine retrieveSSGPage prerendered-page retrieval logic in @angular/ssr/node, and in @angular/ssr for versions 17 through 18, accepts a relative request URL containi...

CVE-2026-104871 Angular SSR: Path Traversal to Sibling Directories in CommonEngine on Windows

The Angular SSR is a server-rise rendering tool for Angular applications. Prior to versions 20.3.36, 21.2.23, and 22.1.7, the CommonEngine retrieveSSGPage prerendered-page retrieval logic in @angular/ssr/node, and in @angular/ssr for versions 17 through 18, accepts a relative request URL containi...

CVE-2026-104871 Angular SSR: Path Traversal to Sibling Directories in CommonEngine on Windows

The Angular SSR is a server-rise rendering tool for Angular applications. Prior to versions 20.3.36, 21.2.23, and 22.1.7, the CommonEngine retrieveSSGPage prerendered-page retrieval logic in @angular/ssr/node, and in @angular/ssr for versions 17 through 18, accepts a relative request URL containi...

@hmcts/ccd-case-ui-toolkit (>=7.3.49-4369, <=7.3.51), @hmcts/media-viewer (>=4.2.16-4435, <=4.2.17) potentially affected by CVE-2026-104871 via @angular/ssr (>=20.3.18, <=20.3.24)

@angular/ssr NPM version =20.3.18, =7.3.49-4369, =4.2.16-4435, =4.2.17 Source cves: CVE-2026-104871 Source advisory: MEND:CVE-2026-104871...

CVE-2026-104871

The Angular SSR tool is vulnerable to a path traversal issue in its CommonEngine.retrieveSSGPage logic when running on Windows . The vulnerability exists in @angular/ssr/node and @angular/ssr (versions 17 through 18) because the application accepts relative request URLs containing backslash paren...

CVE-2026-104871 Angular SSR: Path Traversal to Sibling Directories in CommonEngine on Windows

The Angular SSR is a server-rise rendering tool for Angular applications. Prior to versions 20.3.36, 21.2.23, and 22.1.7, the CommonEngine retrieveSSGPage prerendered-page retrieval logic in @angular/ssr/node, and in @angular/ssr for versions 17 through 18, accepts a relative request URL containi...

CVE-2026-104871: Improper Limitation of a Pathname to a Restricted Directory

The Angular SSR is a server-rise rendering tool for Angular applications. Prior to versions 20.3.36, 21.2.23, and 22.1.7, the CommonEngine retrieveSSGPage prerendered-page retrieval logic in @angular/ssr/node, and in @angular/ssr for versions 17 through 18, accepts a relative request URL containi...

PT-2026-104422

Name of the Vulnerable Software and Affected Versions Angular SSR versions 17 through 18 Angular SSR versions prior to 20.3.36 Angular SSR versions prior to 21.2.23 Angular SSR versions prior to 22.1.7 Description An issue exists in the retrieveSSGPage logic within @angular/ssr/node and...

GHSA-F6MR-PJWC-34M4 Angular: SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR

Summary A discrepancy between WHATWG URL parsing and Angular SSR's URL resolution allows attackers to bypass same-origin checks and cause Server-Side Request Forgery SSRF, potentially leaking sensitive server-side credentials. Technical Description When applications validate incoming URLs using t...

Angular: SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR

Summary A discrepancy between WHATWG URL parsing and Angular SSR's URL resolution allows attackers to bypass same-origin checks and cause Server-Side Request Forgery SSRF, potentially leaking sensitive server-side credentials. Technical Description When applications validate incoming URLs using t...