CVE-2026-41861: Cloudfoundry Foundation Bosh

Medium severity, CVSS 4.2. EPSS: 0.2% chance of exploitation in the next 30 days.

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

• Cloudfoundry Foundation Bosh: before 2.847.0 (fixed in 2.847.0)

Published 2026-08-06. Last modified 2026-08-18.