CVE-2026-41861

Received Received - Intake

Path Traversal in BOSH-Ecosystem BOSH Agent

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: VMware

Description

Path Traversal in BOSH-Ecosystem / BOSH allows an IaaS-metadata attacker to make the agent write a root-owned file with partially attacker-controlled body to any path ending in .network, and create any missing parent directories with mode 0777 via network Alias on Ubuntu. Affected versions: BOSH agent < v2.847.0 (jammy <= v1.1202, or noble <= v1.364). Lower bound unspecified in advisory ("All bosh agent versions").

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-06

Last Modified

2026-08-06

Generated

2026-08-07

AI Q&A

2026-08-07

EPSS Evaluated

N/A

NVD

CVE-2026-41861

Affected Vendors & Products

Vendor	Product	Version / Range
vmware	bosh_agent	to 2.847.0 (exc)
vmware	jammy	to 1.1202 (inc)
vmware	noble	to 1.364 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This is a Path Traversal vulnerability in the BOSH-Ecosystem. An attacker with IaaS-metadata access can exploit it to make the BOSH agent write a root-owned file with partially controlled content to any path ending in .network. The attacker can also create missing parent directories with mode 0777.

Impact Analysis

An attacker could write malicious files to sensitive system locations, potentially leading to privilege escalation, system compromise, or denial of service. The ability to create directories with 0777 permissions may allow further unauthorized access.

Compliance Impact

This vulnerability could lead to unauthorized file access or modification, violating data integrity and confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations if exploited.

Mitigation Strategies

Upgrade BOSH agent to version v2.847.0 or later. Ensure affected systems (jammy <= v1.1202 or noble <= v1.364) are updated to patched versions immediately.

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