{"id":"CVE-2026-106462","sourceIdentifier":"security-advisories@github.com","published":"2026-10-06T21:17:17.020","lastModified":"2026-10-22T18:53:09.440","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Backstage is an open framework for building developer portals. Prior to 1.54.6, scaffolder source-control actions may not consistently enforce intended credential boundaries. An authenticated user could cause an affected action to fall back to broader integration credentials and perform operations with more access than intended. This issue is fixed in 1.54.6 when operators also enable scaffolder.requireScmUserCredentials after upgrading."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"backstage","product":"backstage","versions":[{"version":"< 1.54.6","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend","versions":[{"version":"< 4.1.0","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend-module-azure","versions":[{"version":"< 0.2.25","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend-module-bitbucket-cloud","versions":[{"version":"< 0.3.10","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend-module-bitbucket-server","versions":[{"version":"< 0.2.25","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend-module-github","versions":[{"version":"< 0.9.13","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend-module-gitlab","versions":[{"version":"< 0.11.10","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-07T15:13:05.681052Z","id":"CVE-2026-106462","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-441"},{"lang":"en","value":"CWE-863"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.11.10","matchCriteriaId":"554B8EEF-9383-4C89-94CC-6D4E310C401F"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend-module-azure:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.2.25","matchCriteriaId":"0C67C4AA-6610-4536-9CEF-562872DEB622"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend-module-bitbucket-cloud:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.3.10","matchCriteriaId":"51A44535-7A5D-46B0-AC79-5E9DAE726BAE"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend-module-bitbucket-server:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.2.25","matchCriteriaId":"19CE6595-34DE-4124-B304-FDEFCB3FD00B"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend-module-github:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.9.13","matchCriteriaId":"164D0465-E901-496E-81D9-935CA9E23C73"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend-module-gitlab:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.11.10","matchCriteriaId":"B41C96A0-5669-463A-BFC7-B459D29A69D3"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*","versionEndExcluding":"1.54.6","matchCriteriaId":"630B6B8B-D515-4FEF-83C7-9CF51C7EB2F5"}]}]}],"references":[{"url":"https://github.com/backstage/backstage/commit/6fb2a41ea47da37eafe5ea744050ef90be6820c0","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","source":"security-advisories@github.com","tags":["Patch","Release Notes"]},{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-29gx-h2m3-xw44","source":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"]}]}