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CVE-2026-41861

Arbitrary Root File Write via Path Traversal in BOSH agent

Published 6 Aug 2026Updated 7 Aug 2026

Severity: MEDIUM

4.2

CVSS Base Score

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").

Affected products (1)

  • CloudFoundry Foundation BOSH

Problem types

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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