CVE-2026-41009
Severity CVSS v4.0:
MEDIUM
Type:
CWE-22
Path Traversal
Publication date:
27/05/2026
Last modified:
08/06/2026
Description
When the director sends a long-running request (e.g. compile_package), the agent&#39;s reply JSON is consumed by AgentClient. inject_compile_log (line 332-339) reads response[&#39;value&#39;][&#39;result&#39;][&#39;compile_log_id&#39;] and format_exception (line 318-325) reads exception[&#39;blobstore_id&#39;]; 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.<br />
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Affected versions:<br />
BOSH Director: All versions prior to v282.1.12
Impact
Base Score 4.0
4.30
Severity 4.0
MEDIUM
Base Score 3.x
5.80
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:cloud_foundry:bosh:*:*:*:*:*:*:*:* | 282.1.12 (excluding) |
To consult the complete list of CPE names with products and versions, see this page