{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-106499","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-06T18:46:47.766Z","datePublished":"2026-10-06T21:25:56.166Z","dateUpdated":"2026-10-07T17:46:09.812Z"},"containers":{"cna":{"title":"Backstage: Secret-derived values may be exposed in scaffolder task logs","problemTypes":[{"descriptions":[{"cweId":"CWE-532","lang":"en","description":"CWE-532: Insertion of Sensitive Information into Log File","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/backstage/backstage/security/advisories/GHSA-mfvq-x7vr-rgqg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/backstage/backstage/security/advisories/GHSA-mfvq-x7vr-rgqg"},{"name":"https://github.com/backstage/backstage/commit/dc30fae2d96cb1606d36cc40b242f9b9e539bd70","tags":["x_refsource_MISC"],"url":"https://github.com/backstage/backstage/commit/dc30fae2d96cb1606d36cc40b242f9b9e539bd70"},{"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":"< 1.54.6","status":"affected"}]},{"vendor":"@backstage","product":"plugin-scaffolder-backend","versions":[{"version":"< 4.1.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-06T21:25:56.166Z"},"descriptions":[{"lang":"en","value":"Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose secret-derived values in Scaffolder task logs. Deployments that configure sensitive scaffolder.defaultEnvironment.secrets and allow an attacker to create or modify Scaffolder templates are affected. A template author could cause secret-derived values used during template iteration to be persisted and exposed to users who can access the resulting task logs. This issue is fixed in version 4.1.0."}],"source":{"advisory":"GHSA-mfvq-x7vr-rgqg","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T17:45:56.549598Z","id":"CVE-2026-106499","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":"2026-10-07T17:46:09.812Z"}}]}}