Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/49787?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/49787?format=api", "vulnerability_id": "VCID-nwgc-2f7k-tkb2", "summary": "Backstage has a Possible Symlink Path Traversal in Scaffolder Actions\nMultiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to:\n\n1. **Read arbitrary files** via the `debug:log` action by creating a symlink pointing to sensitive files (e.g., `/etc/passwd`, configuration files, secrets)\n2. **Delete arbitrary files** via the `fs:delete` action by creating symlinks pointing outside the workspace\n3. **Write files outside the workspace** via archive extraction (tar/zip) containing malicious symlinks\n\nThis affects any Backstage deployment where users can create or execute Scaffolder templates.", "aliases": [ { "alias": "CVE-2026-24046" }, { "alias": "GHSA-rq6q-wr2q-7pgp" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/73521?format=api", "purl": "pkg:npm/%40backstage/backend-defaults@0.12.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/backend-defaults@0.12.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/73522?format=api", "purl": "pkg:npm/%40backstage/backend-defaults@0.13.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/backend-defaults@0.13.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/73523?format=api", "purl": "pkg:npm/%40backstage/backend-defaults@0.14.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/backend-defaults@0.14.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/73528?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-backend@2.2.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-backend@2.2.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/73529?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-backend@3.0.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-backend@3.0.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/73530?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-backend@3.1.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-backend@3.1.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/73538?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-node@0.11.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-node@0.11.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/73539?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-node@0.12.3", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-node@0.12.3" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/73519?format=api", "purl": "pkg:npm/%40backstage/backend-defaults@0.13.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5bv8-wj49-3kee" }, { "vulnerability": "VCID-nwgc-2f7k-tkb2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/backend-defaults@0.13.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/73520?format=api", "purl": "pkg:npm/%40backstage/backend-defaults@0.14.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5bv8-wj49-3kee" }, { "vulnerability": "VCID-nwgc-2f7k-tkb2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/backend-defaults@0.14.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/73526?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-backend@3.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-nwgc-2f7k-tkb2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-backend@3.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/73527?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-backend@3.1.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-nwgc-2f7k-tkb2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-backend@3.1.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/73537?format=api", "purl": "pkg:npm/%40backstage/plugin-scaffolder-node@0.12.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-nwgc-2f7k-tkb2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-scaffolder-node@0.12.0" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24046.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "9.1", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24046.json" }, { "reference_url": "https://github.com/backstage/backstage", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/backstage/backstage" }, { "reference_url": "https://github.com/backstage/backstage/commit/c641c147ab371a9a8a2f5f67fdb7cb9c97ef345d", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/backstage/backstage/commit/c641c147ab371a9a8a2f5f67fdb7cb9c97ef345d" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431878", "reference_id": "2431878", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431878" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24046", "reference_id": "CVE-2026-24046", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24046" }, { "reference_url": "https://github.com/advisories/GHSA-rq6q-wr2q-7pgp", "reference_id": "GHSA-rq6q-wr2q-7pgp", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-rq6q-wr2q-7pgp" }, { "reference_url": "https://github.com/backstage/backstage/security/advisories/GHSA-rq6q-wr2q-7pgp", "reference_id": "GHSA-rq6q-wr2q-7pgp", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/backstage/backstage/security/advisories/GHSA-rq6q-wr2q-7pgp" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:6174", "reference_id": "RHSA-2026:6174", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:6174" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:6802", "reference_id": "RHSA-2026:6802", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:6802" } ], "weaknesses": [ { "cwe_id": 22, "name": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "description": "The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory." }, { "cwe_id": 59, "name": "Improper Link Resolution Before File Access ('Link Following')", "description": "The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." } ], "exploits": [], "severity_range_score": "7.0 - 9.1", "exploitability": "0.5", "weighted_severity": "8.2", "risk_score": 4.1, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-nwgc-2f7k-tkb2" }