TI-2026-30220 Aliases CVE-2026-41704 GHSA-mhvf-vxjh-cwwp

Compromised VM can make arbitrary blobstore deletes

LOW 29CWE-284Published 2026-05-27 · Updated 2026-05-27

Key facts

Attack vector: Local
Privileges required: High
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00083 0th percentileScored 2026-11-07

Fix Fixed BOSH Director (Cloud Foundry Foundation): 282.1.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cloud Foundry Foundation	BOSH Director	before 282.1.12	282.1.12	Patch available	CNA

BOSH Director VendorCloud Foundry Foundation Affected before 282.1.12 Fixed in 282.1.12 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cloud_foundry:bosh::::::::	before 282.1.12	Vulnerable	Cloud Foundry

cpe:2.3:a:cloud_foundry:bosh:*:*:*:*:*:*:*:* Versions before 282.1.12 Vulnerable ·Cloud Foundry

Remediation

Fix · CNA BOSH Director (Cloud Foundry Foundation) Fixed in 282.1.12

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-05-27
Cloud Foundry Foundation BOSH Director 282.1.12
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-29660 Local Blobstore may allow arbitrary reads/deletesPriority LOW 19
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-41704
2026-10-03 Alias added: GHSA-mhvf-vxjh-cwwp

References

Advisory 1

https://www.cloudfoundry.org/blog/cve-2026-41704-compromised-vm-can-make-arbitrary-blobstore-deletes/

TI-2026-29616 Information disclosure in Cloud Foundry Foundation uaa_release CVSS 4.0CRITICAL 10.0
TI-2026-35291 Federated OIDC Users Can Bypass externalGroupsWhitelist to Gain uaa.admin CVSS 4.0CRITICAL 9.2
TI-2026-29615 Improper authentication in Cloud Foundry Foundation log-cache_release CVSS 3.1HIGH 7.5
TI-2026-35283 Incorrect Permission Assignment Allows Local Privilege Escalation to SYSTEM via Executable Overwrite CVSS 4.0HIGH 8.5
TI-2026-35280 CVE-2026-47827 – BOSH CLI Powershell Injection CVSS 3.1HIGH 7.5
TI-2026-29662 OS command injection in Cloud Foundry Foundation BOSH CVSS 4.0HIGH 8.7

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences