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4 vulnerabilities found for angular_cli by angular

CVE-2026-33397 (GCVE-0-2026-33397)

Vulnerability from nvd – Published: 2026-03-26 13:46 – Updated: 2026-03-30 14:56
VLAI?
Title
Angular SSR Vulnerable to Protocol-Relative URL Injection via Single Backslash Bypass
Summary
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. While the original fix successfully blocked multiple leading slashes (e.g., `///`), the internal validation logic fails to account for a single backslash (`\`) bypass. When an Angular SSR application is deployed behind a proxy that passes the `X-Forwarded-Prefix` header, an attacker provides a value starting with a single backslash, the internal validation failed to flag the single backslash as invalid, the application prepends a leading forward slash, resulting in a `Location` header containing the URL, and modern browsers interpret the `/\` sequence as `//`, treating it as a protocol-relative URL and redirecting the user to the attacker-controlled domain. Furthermore, the response lacks the `Vary: X-Forwarded-Prefix` header, allowing the malicious redirect to be stored in intermediate caches (Web Cache Poisoning). Versions 22.0.0-next.2, 21.2.3, and 20.3.21 contain a patch. Until the patch is applied, developers should sanitize the `X-Forwarded-Prefix` header in their `server.ts` before the Angular engine processes the request.
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
Impacted products
Vendor Product Version
angular angular-cli Affected: >= 22.0.0-next.0, < 22.0.0-next.2
Affected: >= 21.0.0-next.0, < 21.2.3
Affected: >= 20.0.0-next.0, < 20.3.21
Create a notification for this product.
Show details on NVD website

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CVE-2026-32635 (GCVE-0-2026-32635)

Vulnerability from nvd – Published: 2026-03-13 20:58 – Updated: 2026-03-17 03:55
VLAI?
Title
Angular has XSS in i18n attribute bindings
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-next.3, 21.2.4, 20.3.18, and 19.2.20, 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. This vulnerability is fixed in 22.0.0-next.3, 21.2.4, 20.3.18, and 19.2.20.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Impacted products
Vendor Product Version
@angular compiler Affected: >= 22.0.0-next.0, < 22.0.0-next.3
Affected: >= 21.0.0-next.0, < 21.2.4
Affected: >= 20.0.0-next.0, < 20.3.18
Affected: >= 17.0.0.next.0, < 19.2.20
Create a notification for this product.
    @angular core Affected: >= 22.0.0-next.0, < 22.0.0-next.3
Affected: >= 21.0.0-next.0, < 21.2.4
Affected: >= 20.0.0-next.0, < 20.3.18
Affected: >= 17.0.0.next.0, < 19.2.20
Create a notification for this product.
Show details on NVD website

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CVE-2026-33397 (GCVE-0-2026-33397)

Vulnerability from cvelistv5 – Published: 2026-03-26 13:46 – Updated: 2026-03-30 14:56
VLAI?
Title
Angular SSR Vulnerable to Protocol-Relative URL Injection via Single Backslash Bypass
Summary
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. While the original fix successfully blocked multiple leading slashes (e.g., `///`), the internal validation logic fails to account for a single backslash (`\`) bypass. When an Angular SSR application is deployed behind a proxy that passes the `X-Forwarded-Prefix` header, an attacker provides a value starting with a single backslash, the internal validation failed to flag the single backslash as invalid, the application prepends a leading forward slash, resulting in a `Location` header containing the URL, and modern browsers interpret the `/\` sequence as `//`, treating it as a protocol-relative URL and redirecting the user to the attacker-controlled domain. Furthermore, the response lacks the `Vary: X-Forwarded-Prefix` header, allowing the malicious redirect to be stored in intermediate caches (Web Cache Poisoning). Versions 22.0.0-next.2, 21.2.3, and 20.3.21 contain a patch. Until the patch is applied, developers should sanitize the `X-Forwarded-Prefix` header in their `server.ts` before the Angular engine processes the request.
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
Impacted products
Vendor Product Version
angular angular-cli Affected: >= 22.0.0-next.0, < 22.0.0-next.2
Affected: >= 21.0.0-next.0, < 21.2.3
Affected: >= 20.0.0-next.0, < 20.3.21
Create a notification for this product.
Show details on NVD website

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CVE-2026-32635 (GCVE-0-2026-32635)

Vulnerability from cvelistv5 – Published: 2026-03-13 20:58 – Updated: 2026-03-17 03:55
VLAI?
Title
Angular has XSS in i18n attribute bindings
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-next.3, 21.2.4, 20.3.18, and 19.2.20, 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. This vulnerability is fixed in 22.0.0-next.3, 21.2.4, 20.3.18, and 19.2.20.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Impacted products
Vendor Product Version
@angular compiler Affected: >= 22.0.0-next.0, < 22.0.0-next.3
Affected: >= 21.0.0-next.0, < 21.2.4
Affected: >= 20.0.0-next.0, < 20.3.18
Affected: >= 17.0.0.next.0, < 19.2.20
Create a notification for this product.
    @angular core Affected: >= 22.0.0-next.0, < 22.0.0-next.3
Affected: >= 21.0.0-next.0, < 21.2.4
Affected: >= 20.0.0-next.0, < 20.3.18
Affected: >= 17.0.0.next.0, < 19.2.20
Create a notification for this product.
Show details on NVD website

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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-16T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-17T03:55:33.785Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "compiler",
          "vendor": "@angular",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 22.0.0-next.0, \u003c 22.0.0-next.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 21.0.0-next.0, \u003c 21.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 20.0.0-next.0, \u003c 20.3.18"
            },
            {
              "status": "affected",
              "version": "\u003e= 17.0.0.next.0, \u003c 19.2.20"
            }
          ]
        },
        {
          "product": "core",
          "vendor": "@angular",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 22.0.0-next.0, \u003c 22.0.0-next.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 21.0.0-next.0, \u003c 21.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 20.0.0-next.0, \u003c 20.3.18"
            },
            {
              "status": "affected",
              "version": "\u003e= 17.0.0.next.0, \u003c 19.2.20"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-next.3, 21.2.4, 20.3.18, and 19.2.20, 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\u0027s ability to internationalize attributes. Enabling internationalization for the sensitive attribute by adding i18n-\u003cattribute\u003e name bypasses Angular\u0027s 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. This vulnerability is fixed in 22.0.0-next.3, 21.2.4, 20.3.18, and 19.2.20."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-13T20:58:12.554Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/angular/angular/security/advisories/GHSA-g93w-mfhg-p222",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/angular/angular/security/advisories/GHSA-g93w-mfhg-p222"
        },
        {
          "name": "https://github.com/angular/angular/pull/67541",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/pull/67541"
        },
        {
          "name": "https://github.com/angular/angular/pull/67561",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/pull/67561"
        }
      ],
      "source": {
        "advisory": "GHSA-g93w-mfhg-p222",
        "discovery": "UNKNOWN"
      },
      "title": "Angular has XSS in i18n attribute bindings"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-32635",
    "datePublished": "2026-03-13T20:58:12.554Z",
    "dateReserved": "2026-03-12T15:29:36.559Z",
    "dateUpdated": "2026-03-17T03:55:33.785Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}