CVE-2026-41009

MEDIUM EPSS 1.0%
Published May 27, 20261mo ago · Modified Jun 17, 20262w ago
4.3 CVSS 4.0
Medium
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

When the director sends a long-running request (e.g. compile_package), the agent's reply JSON is consumed by AgentClient. inject_compile_log (line 332-339) reads response['value']['result']['compile_log_id'] and format_exception (line 318-325) reads exception['blobstore_id']; 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. Affected versions: BOSH Director: All versions prior to v282.1.12

CVSS Details

Base Score
4.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
1.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 1

VendorProductVersionRange
cloud_foundrybosh* <282.1.12

References 1

  • cloudfoundry.org https://www.cloudfoundry.org/blog/cve-2026-41009-local-blobstore-may-allow-arbitrary-reads-deletes/
    MitigationVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.