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    <lastBuildDate>Wed, 07 Oct 2026 20:37:54 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-41009 — Local Blobstore may allow arbitrary reads/deletes</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-41009</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Cloud Foundry Foundation BOSH Director&lt;/p&gt;
&lt;p&gt;When the director sends a long-running request (e.g. compile_package), the agent&amp;#39;s reply JSON is consumed by AgentClient. inject_compile_log (line 332-339) reads response[&amp;#39;value&amp;#39;][&amp;#39;result&amp;#39;][&amp;#39;compile_log_id&amp;#39;] and format_exception (line 318-325) reads exception[&amp;#39;blobstore_id&amp;#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 = &amp;#34;../../jobs/director/config/director.yml&amp;#34; resolves outside the blobstore root.&lt;/p&gt;
&lt;p&gt;Affected versions:
BOSH Director: All versions prior to v282.1.12&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Cloud Foundry Foundation BOSH Director&lt;/p&gt;
&lt;p&gt;When the director sends a long-running request (e.g. compile_package), the agent&amp;#39;s reply JSON is consumed by AgentClient. inject_compile_log (line 332-339) reads response[&amp;#39;value&amp;#39;][&amp;#39;result&amp;#39;][&amp;#39;compile_log_id&amp;#39;] and format_exception (line 318-325) reads exception[&amp;#39;blobstore_id&amp;#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 = &amp;#34;../../jobs/director/config/director.yml&amp;#34; resolves outside the blobstore root.&lt;/p&gt;
&lt;p&gt;Affected versions:
BOSH Director: All versions prior to v282.1.12&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2026-41009</guid>
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