CVE-2026-106458

{"id": "CVE-2026-106458", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-106458", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-07T15:27:14.886311Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "backstage", "product": "backstage", "versions": [{"status": "affected", "version": ">= 1.38.0, < 1.55.0"}]}, {"vendor": "@backstage", "product": "plugin-catalog-backend-module-bitbucket-server", "versions": [{"status": "affected", "version": ">= 0.4.0, < 0.5.15"}]}]}], "published": "2026-10-06T21:17:16.270", "references": [{"url": "https://github.com/backstage/backstage/commit/989db63b6f87c8fc04d440f296ad89e10c79b363", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/backstage/backstage/releases/tag/v1.55.0", "tags": ["Patch", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/backstage/backstage/security/advisories/GHSA-c36c-cf6r-ghgj", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-10-27T20:42:41.403", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:backstage\\/plugin-catalog-backend-module-bitbucket-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "D80762E5-DA78-4F35-82AF-A9EFE82C0CD9", "versionEndExcluding": "0.5.15", "versionStartIncluding": "0.4.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3045E636-A64D-4B4F-B029-0A5AC3C2C6FC", "versionEndExcluding": "1.55.0", "versionStartIncluding": "1.38.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}