Arbitrary file reads and deletion via blob IDs
Published May 27, 2026 · Updated May 27, 2026
Path traversal in Cloud Foundry Foundation BOSH Director before 282.1.12 allows attackers to read and delete arbitrary files. AgentClient passes an agent-supplied compile_log_id or blobstore_id unchanged through ResourceManager, and LocalClient joins it to the blobstore root without normalization. Exploitation requires control of a managed VM's agent reply and the local blobstore provider; traversed paths can expose secrets and delete files needed by the Director.
Summary
What happened
Path traversal in Cloud Foundry Foundation BOSH Director before 282.1.12 allows attackers to read and delete arbitrary files. AgentClient passes an agent-supplied compile_log_id or blobstore_id unchanged through ResourceManager, and LocalClient joins it to the blobstore root without normalization. Exploitation requires control of a managed VM's agent reply and the local blobstore provider; traversed paths can expose secrets and delete files needed by the Director.
The record
- CVE
- CVE-2026-41009
- Published
- May 27, 2026
- Updated
- May 27, 2026
- Vendor
- Cloud Foundry Foundation
- Product
- BOSH Director
- Classifications
- CWE-22, T1005
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- May 27, 2026CVE publishedPublication date reported by the CVE source.
- May 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <282.1.12
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo