Vulnerability Description
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
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cloud Foundry | Bosh | < 282.1.12 |
Related Weaknesses (CWE)
References
- https://www.cloudfoundry.org/blog/cve-2026-41704-compromised-vm-can-make-arbitraMitigationVendor Advisory
FAQ
What is CVE-2026-41704?
CVE-2026-41704 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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)...
How severe is CVE-2026-41704?
CVE-2026-41704 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41704?
Check the references section above for vendor advisories and patch information. Affected products include: Cloud Foundry Bosh.