{"id":"CVE-2026-106458","summary":"Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates","details":"Backstage is an open framework for building developer portals. From 0.4.0 until 0.5.15, the @backstage/plugin-catalog-backend-module-bitbucket-server package is affected by inconsistent repository filtering in bitbucket server catalog event updates. Deployments using event-driven updates in the Bitbucket Server catalog provider may ingest catalog locations from repositories that are excluded by the provider's configured project, repository, or archived-repository filters. An authenticated Bitbucket Server user who can push to a filtered-out repository that remains readable by the configured Backstage integration can trigger a legitimate repository event. The affected event path may then add a Location for that repository even though scheduled discovery excludes it. This issue is fixed in version 0.5.15.","aliases":["GHSA-c36c-cf6r-ghgj"],"modified":"2026-10-08T02:50:34.408451465Z","published":"2026-10-06T20:16:12.035Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106458.json","unresolved_ranges":[{"extracted_events":[{"introduced":"0.4.0"},{"fixed":"0.5.15"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"WEB","url":"https://github.com/backstage/backstage/releases/tag/v1.55.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106458.json"},{"type":"ADVISORY","url":"https://github.com/backstage/backstage/security/advisories/GHSA-c36c-cf6r-ghgj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106458"},{"type":"FIX","url":"https://github.com/backstage/backstage/commit/989db63b6f87c8fc04d440f296ad89e10c79b363"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/backstage/backstage","events":[{"introduced":"1a85f9d7b8c2ae48bc8c2386ade4f0e9e5cb157b"},{"fixed":"989db63b6f87c8fc04d440f296ad89e10c79b363"},{"fixed":"23161ae67d0f064e97c60c4c62b86e94c43a383e"}],"database_specific":{"extracted_events":[{"introduced":"1.38.0"},{"fixed":"1.55.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.55.0-next.2","v1.55.0-next.1","v1.55.0-next.0","v1.54.0","v1.54.0-next.3","v1.54.0-next.2","v1.53.0","v1.54.0-next.1","v1.54.0-next.0","v1.53.0-next.2","v1.53.0-next.1","v1.52.0","v1.53.0-next.0","v1.52.0-next.2","v1.52.0-next.1","v1.51.0","v1.52.0-next.0","v1.51.0-next.3","v1.51.0-next.2","v1.51.0-next.1","v1.51.0-next.0","v1.50.0","v1.50.0-next.2","v1.50.0-next.1","v1.50.0-next.0","v1.49.0","v1.49.0-next.2","v1.49.0-next.1","v1.49.0-next.0","v1.48.0","v1.48.0-next.2","v1.48.0-next.1","v1.48.0-next.0","v1.47.0","v1.47.0-next.3","v1.47.0-next.2","v1.47.0-next.1","v1.47.0-next.0","v1.46.0","v1.45.0-next.2","v1.46.0-next.2","v1.46.0-next.1","v1.45.0","v1.46.0-next.0","v1.45.0-next.3","v1.45.0-next.1","v1.45.0-next.0","v1.44.0","v1.44.0-next.1","v1.44.0-next.2","v1.44.0-next.0","v1.43.0","v1.43.0-next.2","v1.43.0-next.0","v1.43.0-next.1","v1.42.0","v1.44.0-next.3","v1.42.0-next.3","v1.42.0-next.2","v1.42.0-next.1","v1.42.0-next.0","v1.41.0","v1.41.0-next.2","v1.41.0-next.1","v1.41.0-next.0","v1.40.0","v1.40.0-next.3","v1.40.0-next.2","v1.39.0","v1.40.0-next.1","v1.40.0-next.0","v1.39.0-next.3","v1.39.0-next.2","v1.39.0-next.1","v1.39.0-next.0","v1.38.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106458.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"}]}