CVE-2026-106503

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{"bugzilla": {"description": "plugin-scaffolder-backend: plugin-scaffolder-backend: Authorization bypass via scaffolder action inputs", "id": "2547234", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547234"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-807", "details": ["Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by scaffolder action input authorization bypass. An authenticated user with access to affected Scaffolder templates could bypass configured action restrictions. Depending on integration credentials, this could grant unauthorized access to repositories and related source-control resources. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.", "A flaw was found in the Backstage plugin-scaffolder-backend component. An authorization bypass allows an authenticated user with access to Scaffolder templates to circumvent configured action restrictions. By manipulating action inputs, an attacker can leverage integration credentials to gain unauthorized access to source-control repositories and associated resources."], "name": "CVE-2026-106503", "package_state": [{"cpe": "cpe:/a:redhat:rhdh:1", "fix_state": "Affected", "package_name": "rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend", "product_name": "Red Hat Developer Hub"}, {"cpe": "cpe:/a:redhat:rhdh:1", "fix_state": "Affected", "package_name": "rhdh/rhdh-hub-rhel9", "product_name": "Red Hat Developer Hub"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Affected", "package_name": "ansible-automation-platform/automation-portal", "product_name": "Self-service automation portal 2"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Affected", "package_name": "ansible-automation-platform/bootc-automation-portal-rhel9", "product_name": "Self-service automation portal 2"}], "public_date": "2026-10-06T21:37:33Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-106503\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-106503\nhttps://github.com/backstage/backstage/commit/11c1384c0649b8ab26391c6a4e4f34b80ab0d188\nhttps://github.com/backstage/backstage/commit/a91ed72d540e80b62a73b39bb1563ff5018d52d1\nhttps://github.com/backstage/backstage/commit/e307e4f487103d815e484291b3fda778ab9983bf\nhttps://github.com/backstage/backstage/releases/tag/v1.49.6\nhttps://github.com/backstage/backstage/releases/tag/v1.50.5\nhttps://github.com/backstage/backstage/releases/tag/v1.54.6\nhttps://github.com/backstage/backstage/security/advisories/GHSA-hmp2-4m7g-22cv"], "threat_severity": "Important"}

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