{"id":"CVE-2026-106458","title":"Backstage is an open framework for building developer portals","summary":"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 ev…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-863"],"vendor":"backstage","product":"backstage","affected":["backstage >= 1.38.0, < 1.55.0","plugin-catalog-backend-module-bitbucket-server >= 0.4.0, < 0.5.15"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T21:17:16.270","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106458","references":[{"url":"https://github.com/backstage/backstage/commit/989db63b6f87c8fc04d440f296ad89e10c79b363","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/releases/tag/v1.55.0","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-c36c-cf6r-ghgj","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-06T21:20:28.981Z","slug":"CVE-2026-106458","body":"## Overview\n\nBackstage 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}