{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "19.2.25"
              },
              {
                "introduced": "20.0.0"
              },
              {
                "fixed": "20.3.30"
              },
              {
                "introduced": "21.0.0"
              },
              {
                "fixed": "21.2.22"
              },
              {
                "introduced": "22.0.0"
              },
              {
                "fixed": "22.1.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "40e2b5b4d13792ed7c46a1d22afcf6c12ac9c679"
            },
            {
              "introduced": "00dcbf2eeb3fd18ed39148e4bc9e49a5b35cae0c"
            },
            {
              "introduced": "862d27f25c4d3bf2fe2918b76759f3f4a83563d1"
            },
            {
              "fixed": "4ee0421f0c4c84d9042bc94cf9613d005f8f9505"
            },
            {
              "fixed": "4c0bc4345a41ab48d8361e0bff18191da9c8c065"
            },
            {
              "fixed": "898380974d49cf7976e9d89cc74a0801a26ce7b1"
            },
            {
              "fixed": "3e924cc8dbbb57f23b262cb8f0d7e2bd0673034c"
            },
            {
              "fixed": "5aa6d97deb9ef1de14e23748b7fa74f97d183132"
            },
            {
              "fixed": "71e52d1396b9cef98652929b73e08c4cde645970"
            }
          ],
          "repo": "https://github.com/angular/angular",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f6mr-pjwc-34m4"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88056.json"
  },
  "details": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular Server-Side Rendering in @angular/platform-server processes user-controlled resource or request URLs through HttpClient after application code validates them with WHATWG URL parsing. The resolveUrl and parseUrl utilities called String.prototype.trim(), which removed leading Unicode whitespace such as U+00A0 or U+FEFF after the input passed a same-origin check, converting a relative path into a protocol-relative attacker-controlled URL. In affected applications that attach sensitive server-side credentials such as Authorization headers to approved requests, relativeUrlsTransformerInterceptorFn then dispatched the request to the attacker-controlled origin, causing SSRF and credential disclosure. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.",
  "id": "CVE-2026-88056",
  "modified": "2026-09-12T03:30:47.339413897Z",
  "published": "2026-09-10T18:42:34.054Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/angular/angular/releases/tag/v20.3.30"
    },
    {
      "type": "WEB",
      "url": "https://github.com/angular/angular/releases/tag/v21.2.22"
    },
    {
      "type": "WEB",
      "url": "https://github.com/angular/angular/releases/tag/v22.1.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88056.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/angular/angular/security/advisories/GHSA-f6mr-pjwc-34m4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88056"
    },
    {
      "type": "FIX",
      "url": "https://github.com/angular/angular/commit/3e924cc8dbbb57f23b262cb8f0d7e2bd0673034c"
    },
    {
      "type": "FIX",
      "url": "https://github.com/angular/angular/commit/5aa6d97deb9ef1de14e23748b7fa74f97d183132"
    },
    {
      "type": "FIX",
      "url": "https://github.com/angular/angular/commit/71e52d1396b9cef98652929b73e08c4cde645970"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Angular: SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR"
}