CVE-2026-47828
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedDuring 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe bosh-cli fails to validate TLS server certificates when uploading compiled CPI packages and rendered job templates to the DAV blobstore during bosh create-env and bosh delete-env operations. An attacker performing a man-in-the-middle attack can intercept Basic-auth credentials and the rendered-templates archive containing BOSH Director bootstrap secrets, then replay these credentials to the VM's agent for root code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 7.10.4CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed bosh-cli versionRun 'bosh --version' or 'bosh -v' to retrieve the CLI versionAffected if Version is lower than 7.10.4
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Identify blobstore type in useExamine bosh deployment manifest or environment configuration for blobstore section, look for 'type: dav' or similar DAV configurationAffected if DAV blobstore type is configured and in use for the environment
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Verify if create-env or delete-env operations are performedReview recent operations logs or audit trails for 'bosh create-env' or 'bosh delete-env' commands executedAffected if These operations have been run against an environment using DAV blobstore with a vulnerable bosh-cli version
The environment is affected if bosh-cli version is below 7.10.4 and DAV blobstore is used during create-env or delete-env operations.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped7.10.4
Upgrade bosh-cli to version 7.10.4 or later, which implements proper TLS certificate validation for DAV blobstore communications.
v7.10.4
- Check current bosh-cli version by running: bosh -v or bosh version
- Upgrade bosh-cli to version 7.10.4 or later using your package manager or by downloading the new binary from the Cloud Foundry releases repository
- Verify the upgrade was successful by running: bosh -v to confirm the version is 7.10.4 or higher
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,904.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-47828 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-47828 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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