Search

Find a vulnerability

Search criteria

    2 vulnerabilities found for Identity Platform and Firebase Authentication by Google Cloud

    CVE-2026-85268 (GCVE-0-2026-85268)

    Vulnerability from nvd – Published: 2026-10-30 10:20 – Updated: 2026-10-30 16:48
    VLAI
    Title
    Cross-Site Scripting (XSS) in Firebase Auth Handler via Malicious Bundle ID
    Summary
    A Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-30 16:48 UTC
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    GoogleCloud CNA under the Google root
    CNA scorecard B 77/100 over 32 records in the last 180 days details
    Impacted products
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-85268",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-30T16:48:10.216800Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-30T16:48:22.519Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "iOS"
              ],
              "product": "Identity Platform and Firebase Authentication",
              "vendor": "Google Cloud",
              "versions": [
                {
                  "lessThan": "2026-08-14",
                  "status": "affected",
                  "version": "0",
                  "versionType": "date"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "Mathias Karlsson"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eA Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID.\u003c/p\u003e"
                }
              ],
              "value": "A Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-63",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-63 Cross-Site Scripting (XSS)"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 8.7,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "AMBER",
                "subAvailabilityImpact": "LOW",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "PASSIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-79",
                  "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-30T10:20:06.249Z",
            "orgId": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
            "shortName": "GoogleCloud"
          },
          "references": [
            {
              "url": "https://firebase.google.com/support/releases#auth-helper-fix"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "This vulnerability has been patched for all users and no app updates are required. Action is only needed for developers who followed Option 4 (self-hosting the helper code) in the \u003ca href=\"https://firebase.google.com/docs/auth/web/redirect-best-practices#self-host-helper-code\"\u003eFirebase redirect best practices documentation\u003c/a\u003e. These users should re-synchronize the helper code to make sure they are hosting the latest version."
                }
              ],
              "value": "This vulnerability has been patched for all users and no app updates are required. Action is only needed for developers who followed Option 4 (self-hosting the helper code) in the Firebase redirect best practices documentation https://firebase.google.com/docs/auth/web/redirect-best-practices#self-host-helper-code. These users should re-synchronize the helper code to make sure they are hosting the latest version."
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Cross-Site Scripting (XSS) in Firebase Auth Handler via Malicious Bundle ID",
          "x_generator": {
            "engine": "Vulnogram 1.0.2"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
        "assignerShortName": "GoogleCloud",
        "cveId": "CVE-2026-85268",
        "datePublished": "2026-10-30T10:20:06.249Z",
        "dateReserved": "2026-09-03T16:36:41.159Z",
        "dateUpdated": "2026-10-30T16:48:22.519Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-85268 (GCVE-0-2026-85268)

    Vulnerability from cvelistv5 – Published: 2026-10-30 10:20 – Updated: 2026-10-30 16:48
    VLAI
    Title
    Cross-Site Scripting (XSS) in Firebase Auth Handler via Malicious Bundle ID
    Summary
    A Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-30 16:48 UTC
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    GoogleCloud CNA under the Google root
    CNA scorecard B 77/100 over 32 records in the last 180 days details
    Impacted products
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-85268",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-30T16:48:10.216800Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-30T16:48:22.519Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "iOS"
              ],
              "product": "Identity Platform and Firebase Authentication",
              "vendor": "Google Cloud",
              "versions": [
                {
                  "lessThan": "2026-08-14",
                  "status": "affected",
                  "version": "0",
                  "versionType": "date"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "Mathias Karlsson"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eA Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID.\u003c/p\u003e"
                }
              ],
              "value": "A Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-63",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-63 Cross-Site Scripting (XSS)"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 8.7,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "AMBER",
                "subAvailabilityImpact": "LOW",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "PASSIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-79",
                  "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-30T10:20:06.249Z",
            "orgId": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
            "shortName": "GoogleCloud"
          },
          "references": [
            {
              "url": "https://firebase.google.com/support/releases#auth-helper-fix"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "This vulnerability has been patched for all users and no app updates are required. Action is only needed for developers who followed Option 4 (self-hosting the helper code) in the \u003ca href=\"https://firebase.google.com/docs/auth/web/redirect-best-practices#self-host-helper-code\"\u003eFirebase redirect best practices documentation\u003c/a\u003e. These users should re-synchronize the helper code to make sure they are hosting the latest version."
                }
              ],
              "value": "This vulnerability has been patched for all users and no app updates are required. Action is only needed for developers who followed Option 4 (self-hosting the helper code) in the Firebase redirect best practices documentation https://firebase.google.com/docs/auth/web/redirect-best-practices#self-host-helper-code. These users should re-synchronize the helper code to make sure they are hosting the latest version."
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Cross-Site Scripting (XSS) in Firebase Auth Handler via Malicious Bundle ID",
          "x_generator": {
            "engine": "Vulnogram 1.0.2"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
        "assignerShortName": "GoogleCloud",
        "cveId": "CVE-2026-85268",
        "datePublished": "2026-10-30T10:20:06.249Z",
        "dateReserved": "2026-09-03T16:36:41.159Z",
        "dateUpdated": "2026-10-30T16:48:22.519Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }