{"cve":"CVE-2026-106458","nvd":{"published":"2026-10-06T21:17:16.270","modified":"2026-10-07T17:16:48.263","status":"Undergoing Analysis","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5},"cwes":["CWE-863"],"references":["https://github.com/backstage/backstage/commit/989db63b6f87c8fc04d440f296ad89e10c79b363","https://github.com/backstage/backstage/releases/tag/v1.55.0","https://github.com/backstage/backstage/security/advisories/GHSA-c36c-cf6r-ghgj"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-106458","score":0.00268,"percentile":0.18835,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-c36c-cf6r-ghgj","url":"https://osv.dev/vulnerability/GHSA-c36c-cf6r-ghgj","summary":" Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates","modified":"2026-10-07T20:30:04.835959603Z","packages":[{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend-module-bitbucket-server","purl":"pkg:npm/%40backstage/plugin-catalog-backend-module-bitbucket-server","ranges":[">=0.4.0 <0.5.15"],"fixed":["0.5.15"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}