CVE-2026-41861 — Arbitrary Root File Write via Path Traversal in BOSH agent

CVE-2026-41861

Arbitrary Root File Write via Path Traversal in BOSH agent PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
CloudFoundry Foundation / BOSH	affected 0 before 2.847.0

CWE

CWE-22

References

https://www.cloudfoundry.org/blog/cve-2026-41861-arbitrary-root-file-write-via-path-traversal-in-bosh-agent/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.