AgentClient#handle_method (lines 264-303) processes every NATS reply. It calls inject_compile_log (line 273) on every response, which reads response['value']['result']['compile_log_id'] (line 332-338) and passes it to download_and_delete_blob. Separately, any response containing 'exception' goes through format_exception (lines 308-325), which reads exception['blobstore_id'] and also calls download_and_delete_blob. That helper (lines 344-349) calls ResourceManager#get_resource(blob_id) and, in an ensure block, ResourceManager#delete_resource(blob_id). ResourceManager (resource_manager.rb:62-70) calls blobstore.delete(id) on the single shared Director blobstore with no UUID-format check, no ownership check, and no namespace prefix. Affected versions: BOSH Director: All versions prior to v282.1.12
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://www.cloudfoundry.org/blog/cve-2026-41704-compromised-vm-can-make-arbitrary-blobstore-deletes/ Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.8 · cloud_foundryNVD modified 2026-10-26 11:10
Affected (CPE criteria) 1
cpe:2.3:a:cloud_foundry:bosh:*:*:*:*:*:*:*:*
References 1
- https://www.cloudfoundry.org/blog/cve-2026-41704-compromised-vm-can-make-arbitrary-blobstore-deletes/ Mitigation, Vendor Advisory