CVE-2026-47671: Nhost is an open source Firebase alternative with GraphQL

Q: How do I fix CVE-2026-47671?

cli: upgrade to 1.46.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-47671 being exploited?

CVE-2026-47671 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-47671 affect?

CVE-2026-47671 affects cli. Severity is medium (CVSS 5.4). Nhost is an open source Firebase alternative with GraphQL. In versions of Nhost CLI prior to 1.46.0, the hidden `nhost configserver` used by `nhost dev` exposes the Mimir GraphQL API with dummy authorization directives and permissive CORS.

Q: How urgent is CVE-2026-47671?

Priority 31/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2026-47671 is a medium-severity flaw (CVSS 5.4) affecting cli. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nhost is an open source Firebase alternative with GraphQL. In versions of Nhost CLI prior to 1.46.0, 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

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 72%)
CISA exploited list	No
Weakness	CWE-306
Published	2026-07-21
Last modified	2026-10-24

Publisher (CNA): GitHub, Inc. · Vendor: nhost

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-21 20:17 UTCPublished CVE record published
2026-10-24 19:10 UTCUpdated Record last modified

nhost cli UPGRADE

Affected: < 1.46.0

Fixed in: 1.46.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cli || rpm -q cli || cli --version

2. UPGRADE to 1.46.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cli

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cli

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-47671?

cli: upgrade to 1.46.0. Exact commands for each OS are on this page.

Is CVE-2026-47671 being exploited?

CVE-2026-47671 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-47671 affect?

CVE-2026-47671 affects cli. Severity is medium (CVSS 5.4). Nhost is an open source Firebase alternative with GraphQL. In versions of Nhost CLI prior to 1.46.0, the hidden `nhost configserver` used by `nhost dev` exposes the Mimir GraphQL API with dummy authorization directives and permissive CORS.

How urgent is CVE-2026-47671?

Priority 31/100. Public exploit reference

References

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