Path Traversal in Cloudfoundry Foundation Bosh
CVE-2026-41861
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").
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.002 (4.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Cloudfoundry Foundation Bosh — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-41861?
- CVE-2026-41861 is a medium-severity vulnerability in Cloudfoundry Foundation Bosh, classified under Path Traversal. CVSS score: 4.2/10. Published 2026-08-06.
- How severe is CVE-2026-41861?
- Medium severity. CVSS v3 base score is 4.2 out of 10.