CVE-2026-41009

{"id": "CVE-2026-41009", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41009", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-27T13:38:21.285236Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@vmware.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 4.7, "exploitabilityScore": 0.6}], "cvssMetricV40": [{"type": "Secondary", "source": "security@vmware.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 4.3, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security@vmware.com", "affectedData": [{"vendor": "Cloud Foundry Foundation", "product": "BOSH Director", "versions": [{"status": "affected", "version": "0", "lessThan": "282.1.12", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-27T08:16:43.647", "references": [{"url": "https://www.cloudfoundry.org/blog/cve-2026-41009-local-blobstore-may-allow-arbitrary-reads-deletes/", "tags": ["Mitigation", "Vendor Advisory"], "source": "security@vmware.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@vmware.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "When the director sends a long-running request (e.g. compile_package), the agent's reply JSON is consumed by AgentClient. inject_compile_log (line 332-339) reads response['value']['result']['compile_log_id'] and format_exception (line 318-325) reads exception['blobstore_id']; both pass the agent-supplied string unmodified to download_and_delete_blob(blob_id) (line 344-349), which calls @resource_manager.get_resource(blob_id) and, in an ensure block, @resource_manager.delete_resource(blob_id). Api::ResourceManager forwards the id straight to blobstore.get(id) / blobstore.delete(id). When the director is configured with the local blobstore provider, Blobstore::LocalClient#object_file_path(oid) is File.join(@blobstore_path, oid) (local_client.rb:54-56) with no normalisation, so oid = \"../../jobs/director/config/director.yml\" resolves outside the blobstore root.\n\nAffected versions:\nBOSH Director: All versions prior to v282.1.12"}, {"lang": "es", "value": "Cuando el director env\u00eda una solicitud de larga duraci\u00f3n (p. ej., compile_package), el JSON de respuesta del agente es consumido por AgentClient. inject_compile_log (l\u00ednea 332-339) lee response[\u2019value\u2019][\u2019result\u2019][\u2019compile_log_id\u2019] y format_exception (l\u00ednea 318-325) lee exception[\u2019blobstore_id\u2019]; ambos pasan la cadena proporcionada por el agente sin modificar a download_and_delete_blob(blob_id) (l\u00ednea 344-349), que llama a @resource_manager.get_resource(blob_id) y, en un bloque ensure, a @resource_manager.delete_resource(blob_id). API::ResourceManager reenv\u00eda el ID directamente a blobstore.get(id) / blobstore.delete(id). Cuando el director est\u00e1 configurado con el proveedor de blobstore local, Blobstore::LocalClient#object_file_path(oid) es File.join(@blobstore_path, oid) (local_client.rb:54-56) sin normalizaci\u00f3n, por lo que oid = \u2019.. / .. / jobs/director/config/director.yml\u2019 se resuelve fuera de la ra\u00edz del blobstore.\n\nVersiones afectadas:\nBOSH Director: Todas las versiones anteriores a la v282.1.12"}], "lastModified": "2026-10-26T11:10:00.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cloud_foundry:bosh:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "714614AA-411E-42F4-86BC-7CE7261E2047", "versionEndExcluding": "282.1.12"}], "operator": "OR"}]}], "sourceIdentifier": "security@vmware.com"}