# CVE-2026-47826: blobs.yaml Path Traversal Allows File Writes

> An attacker can exploit path traversal in BOSH CLI to write arbitrary files and exfiltrate sensitive information.

- **Severity:** High 8.5 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Jul 2026
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-j722-97vw-3p9m

## What is CVE-2026-47826?

CVE-2026-47826 is a high-severity path traversal vulnerability in CloudFoundry Foundation BOSH CLI tool, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The blobs.yml path key traversal vulnerability in the BOSH CLI tool allows an attacker to write arbitrary files and exfiltrate sensitive information.
Affected versions: BOSH CLI tool versions prior to v7.10.4.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-47826?

It affects 1 product.


Products: Cloudfoundry Bosh Cli.

## How do I fix CVE-2026-47826?

No fix has been published for CVE-2026-47826 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-47826 being exploited?

There is no known exploitation of CVE-2026-47826 in the wild and no public exploit code.

## Other vulnerabilities in CloudFoundry Foundation BOSH CLI tool

- [CVE-2026-47828](https://insights.sbomify.com/CVE-2026-47828/): Missing TLS Certificate Verification in BOSH CLI Allows Root Code Execution via Man-in-the-Middle Credential Replay (high 8.9)
- [CVE-2026-47829](https://insights.sbomify.com/CVE-2026-47829/): Argument Injection in BOSH CLI Allows Local Command Execution on Operator Workstations via Compromised Director (high 7.7)
- [CVE-2026-41857](https://insights.sbomify.com/CVE-2026-41857/): BOSH CLI Shell Injection (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47826 and fix it if it is affected.

What it is: CVE-2026-47826 is a high-severity path traversal vulnerability in CloudFoundry Foundation BOSH CLI tool, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-47826 in the wild and no public exploit code.

Affected product: CloudFoundry Foundation BOSH CLI tool. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47826/ (Markdown: https://insights.sbomify.com/CVE-2026-47826/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47826
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47826
- OSV: https://osv.dev/vulnerability/CVE-2026-47826

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47826/
Summaries are generated and may contain mistakes; the official description above is the record.