Missing TLS Certificate Verification in BOSH CLI Allows Root Code Execution via Man-in-the-Middle Credential Replay
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
During bosh create-env and bosh delete-env, the CLI uploads compiled CPI packages and rendered job templates to the new VM's DAV blobstore over HTTPS without verifying the server certificate, even though a CA certificate for that endpoint is available in the installation manifest. A network attacker can terminate the TLS connection, harvest the Basic-auth credentials, and read the rendered-templates archive containing every bootstrap secret for the new BOSH Director, then replay the credentials against the real VM's agent for root code execution. Affected versions: bosh-cli versions prior to v7.10.4.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| BOSH-Ecosystem / BOSH (bosh-cli) | bosh-cli | before 7.10.4 | 7.10.4 | Patch available | CNA |
- bosh-cli VendorBOSH-Ecosystem / BOSH (bosh-cli) Affected before 7.10.4 Fixed in 7.10.4 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cloudfoundry:bosh_cli:*:*:*:*:*:*:*:* | before 7.10.4 | Vulnerable | CloudFoundry Foundation |
- cpe:2.3:a:cloudfoundry:bosh_cli:*:*:*:*:*:*:*:* Versions before 7.10.4 Vulnerable ·CloudFoundry Foundation
Remediation
- Fix · CNA bosh-cli (BOSH-Ecosystem / BOSH (bosh-cli)) Fixed in 7.10.4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47828
- 2026-10-03 Alias added: GHSA-93mr-7m4p-h3cq
References
More CloudFoundry Foundation Bosh Cli vulnerabilities
- TI-2026-35279 blobs.yaml Path Traversal Allows File Writes CVSS 4.0HIGH 8.5
- TI-2026-35282 Argument Injection in BOSH CLI Allows Local Command Execution on Operator Workstations via Compromised Director CVSS 4.0HIGH 7.7
- TI-2026-30267 BOSH CLI Shell Injection CVSS 4.0HIGH 7.1
Sources
- CVE-2026-47828 · CVE Program
- CVE-2026-47828 · NVD
- FIRST EPSS
- GHSA-93mr-7m4p-h3cq · GitHub Advisory Database · CC BY 4.0
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