{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-106498",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-06T18:46:47.766Z",
        "datePublished": "2026-10-06T21:23:37.560Z",
        "dateUpdated": "2026-10-09T01:55:00.494Z"
    },
    "containers": {
        "cna": {
            "title": "Backstage: Improper URL validation in catalog entity placeholder resolution",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-918",
                            "lang": "en",
                            "description": "CWE-918: Server-Side Request Forgery (SSRF)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.7,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/backstage/backstage/security/advisories/GHSA-qgvj-qcf8-xq73",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/backstage/backstage/security/advisories/GHSA-qgvj-qcf8-xq73"
                },
                {
                    "name": "https://github.com/backstage/backstage/commit/0b0f6fc89b4eb4872c76a498abbe1dc65998bb6e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/commit/0b0f6fc89b4eb4872c76a498abbe1dc65998bb6e"
                },
                {
                    "name": "https://github.com/backstage/backstage/commit/286bfc1f9cc3608a073b41016be302785be385d1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/commit/286bfc1f9cc3608a073b41016be302785be385d1"
                },
                {
                    "name": "https://github.com/backstage/backstage/commit/61a10f19926aeda7f4a32de48d733e6710584634",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/commit/61a10f19926aeda7f4a32de48d733e6710584634"
                },
                {
                    "name": "https://github.com/backstage/backstage/commit/99729e925fd2bd40ba210022351a0ee6318e6197",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/commit/99729e925fd2bd40ba210022351a0ee6318e6197"
                },
                {
                    "name": "https://github.com/backstage/backstage/commit/e786ac309ed2d775daf2309393c015c43902d6f6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/commit/e786ac309ed2d775daf2309393c015c43902d6f6"
                },
                {
                    "name": "https://github.com/backstage/backstage/releases/tag/v1.49.6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/releases/tag/v1.49.6"
                },
                {
                    "name": "https://github.com/backstage/backstage/releases/tag/v1.50.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/releases/tag/v1.50.5"
                },
                {
                    "name": "https://github.com/backstage/backstage/releases/tag/v1.51.3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/releases/tag/v1.51.3"
                },
                {
                    "name": "https://github.com/backstage/backstage/releases/tag/v1.53.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/releases/tag/v1.53.2"
                },
                {
                    "name": "https://github.com/backstage/backstage/releases/tag/v1.54.6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/backstage/backstage/releases/tag/v1.54.6"
                }
            ],
            "affected": [
                {
                    "vendor": "backstage",
                    "product": "backstage",
                    "versions": [
                        {
                            "version": "< 1.49.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.50.0-next.0, < 1.50.5",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.51.0-next.0, < 1.51.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.52.0-next.0, < 1.53.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.54.0-next.0, < 1.54.6",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "@backstage",
                    "product": "plugin-catalog-backend",
                    "versions": [
                        {
                            "version": "< 3.5.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.6.0, < 3.6.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.7.0, < 3.7.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.8.0, < 3.8.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.9.0, < 3.9.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-06T21:23:37.560Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Backstage is an open framework for building developer portals. Prior to 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1, the @backstage/plugin-catalog-backend package is affected by improper url validation in catalog entity placeholder resolution. An authenticated Backstage user could craft a catalog entity with placeholder directives that reference resources outside the entity's source repository. Under certain configurations, this could allow access to data not intended to be available to the user. This issue is fixed in versions 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1."
                }
            ],
            "source": {
                "advisory": "GHSA-qgvj-qcf8-xq73",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-09T01:54:51.540668Z",
                                "id": "CVE-2026-106498",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-09T01:55:00.494Z"
                }
            }
        ]
    }
}