{"id":"CVE-2026-106497","state":"PUBLISHED","title":"Backstage: Inconsistent catalog property permission evaluation","description":"Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.","publishedAt":"2026-10-06T21:18:31.150Z","updatedAt":"2026-10-07T16:19:32.903Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["backstage backstage","@backstage plugin-catalog-backend"],"affected":[{"vendor":"backstage","product":"backstage","versions":[{"version":"< 1.54.6","status":"affected"}]},{"vendor":"@backstage","product":"plugin-catalog-backend","versions":[{"version":"< 3.9.1","status":"affected"}]}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"weaknesses":["CWE-178","CWE-863"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/106xxx/CVE-2026-106497.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-106497","state":"PUBLISHED","datePublished":"2026-10-06T21:18:31.150Z","dateUpdated":"2026-10-07T16:19:32.903Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-06T18:46:47.766Z"},"containers":{"cna":{"title":"Backstage: Inconsistent catalog property permission evaluation","descriptions":[{"lang":"en","value":"Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1."}],"affected":[{"vendor":"backstage","product":"backstage","versions":[{"version":"< 1.54.6","status":"affected"}]},{"vendor":"@backstage","product":"plugin-catalog-backend","versions":[{"version":"< 3.9.1","status":"affected"}]}],"references":[{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","name":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b","name":"https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b","tags":["x_refsource_MISC"]},{"url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","name":"https://github.com/backstage/backstage/releases/tag/v1.54.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-178","lang":"en","description":"CWE-178: Improper Handling of Case Sensitivity","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-06T21:18:31.150Z"},"source":{"advisory":"GHSA-8429-xpcj-3cg5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T16:19:14.828108Z","id":"CVE-2026-106497","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-07T16:19:32.903Z"}}]}}}