{"url":"http://public2.vulnerablecode.io/api/packages/957621?format=json","purl":"pkg:npm/%40backstage/plugin-techdocs-node@0.0.0-nightly-20260210031550","type":"npm","namespace":"@backstage","name":"plugin-techdocs-node","version":"0.0.0-nightly-20260210031550","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"1.14.3","latest_non_vulnerable_version":"1.14.3","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/73954?format=json","vulnerability_id":"VCID-55sp-nuj7-nkf8","summary":"Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the documentation build process. A gap in this allowlist allows attackers to craft an mkdocs.yml that causes arbitrary Python code execution, completely bypassing TechDocs' security controls. This issue has been patched in version 1.14.3.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-29186.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-2026-29186.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-29186","reference_id":"","reference_type":"","scores":[{"value":"0.00038","scoring_system":"epss","scoring_elements":"0.11771","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00038","scoring_system":"epss","scoring_elements":"0.11831","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00038","scoring_system":"epss","scoring_elements":"0.11855","published_at":"2026-06-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-29186"},{"reference_url":"https://backstage.io/docs/features/techdocs/architecture","reference_id":"","reference_type":"","scores":[{"value":"7.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://backstage.io/docs/features/techdocs/architecture"},{"reference_url":"https://github.com/backstage/backstage","reference_id":"","reference_type":"","scores":[{"value":"7.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/backstage/backstage"},{"reference_url":"https://www.mkdocs.org/about/release-notes/#version-14-2022-09-27","reference_id":"","reference_type":"","scores":[{"value":"7.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.mkdocs.org/about/release-notes/#version-14-2022-09-27"},{"reference_url":"https://www.mkdocs.org/user-guide/configuration/#hooks","reference_id":"","reference_type":"","scores":[{"value":"7.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.mkdocs.org/user-guide/configuration/#hooks"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445480","reference_id":"2445480","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445480"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29186","reference_id":"CVE-2026-29186","reference_type":"","scores":[{"value":"7.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29186"},{"reference_url":"https://github.com/advisories/GHSA-928r-fm4v-mvrw","reference_id":"GHSA-928r-fm4v-mvrw","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-928r-fm4v-mvrw"},{"reference_url":"https://github.com/backstage/backstage/security/advisories/GHSA-928r-fm4v-mvrw","reference_id":"GHSA-928r-fm4v-mvrw","reference_type":"","scores":[{"value":"7.7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-09T20:15:04Z/"}],"url":"https://github.com/backstage/backstage/security/advisories/GHSA-928r-fm4v-mvrw"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:13826","reference_id":"RHSA-2026:13826","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:13826"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:9742","reference_id":"RHSA-2026:9742","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:9742"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/40222?format=json","purl":"pkg:npm/%40backstage/plugin-techdocs-node@1.14.3","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-techdocs-node@1.14.3"}],"aliases":["CVE-2026-29186","GHSA-928r-fm4v-mvrw"],"risk_score":4.1,"exploitability":"0.5","weighted_severity":"8.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-55sp-nuj7-nkf8"}],"fixing_vulnerabilities":[],"risk_score":"4.1","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/%2540backstage/plugin-techdocs-node@0.0.0-nightly-20260210031550"}