vulnerability / NVI-00018288 / Revision 1
Nhost CLI local configserver allows cross-origin unauthenticated read/write access to local development configuration and secrets
GitHub lists this reviewed advisory for github.com/nhost/nhost. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
5.4 medium
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
github.com/nhost/nhost
source listed< 0.0.0-20260518172022-e407511627d2
### Summary The hidden `nhost configserver` used by `nhost dev` exposes the Mimir GraphQL API with dummy authorization directives and permissive CORS. When a developer is running the local development environment, any process that can reach the developer's localhost service, including a web page loaded from an arbitrary origin, can query the configserver for local Nhost configuration and secrets and can mutate the local `.secrets` file. This impacts developers using `nhost dev`: project admin secrets, JWT signing keys, webhook secrets, Grafana credentials, and custom environment variables can be read, and attacker-controlled secrets can be written to the local development project. ### Details The CLI registers a hidden `configserver` command in `cli/main.go:39` and `cli/main.go:41`. That command is used as the local development configserver image in `nhost dev`: `cli/cmd/dev/up.go:176` through `cli/cmd/dev/up.go:200` select `nhost/cli:` as the configserver image, and `cli/dockercompose/configserver.go:80` through `cli/dockercompose/configserver.go:84` run it with the `configserver` command. The generated development dashboard receives the configserver and logs GraphQL
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-64cj-qvx5-m4f3 ↗
GitHub Advisory Database · vendor advisory
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Public revision history
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- Revision 1 ·
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