CVE-2026-41574: Nhost is an open source Firebase alternative with GraphQL

Q: How do I fix CVE-2026-41574?

nhost\/auth: upgrade to 0.49.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-41574 being exploited?

CVE-2026-41574 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-2026-41574 affect?

CVE-2026-41574 affects nhost\/auth. Severity is critical (CVSS 9.8). Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.49.1, Nhost automatically links an incoming OAuth identity to an existing Nhost account when the email addresses match. This is only safe when the email has been

Q: How urgent is CVE-2026-41574?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-41574 is a critical-severity flaw (CVSS 9.8) affecting nhost\/auth. 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. Prior to version 0.49.1, Nhost automatically links an incoming OAuth identity to an existing Nhost account when the email addresses match. This is only safe when the email has been verified by the OAuth provider. Nhost's controller trusts a profile.EmailVerified boolean that is set by each provider adapter. The vulnerability is that several provider adapters do not correctly populate this

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-05-08
Last modified	2026-06-17

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

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-08 15:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

nhost nhost\/auth UPGRADE

Affected: < 0.49.1

Fixed in: 0.49.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.49.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nhostauth

Note

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

Exact fixes by distribution

Go · github.com/nhost/nhost · FIXED · 0.0.0-20260417112436-ec8dab3f2cf4 · vulnerable: < 0.0.0-20260417112436-ec8dab3f2cf4 · source

go get github.com/nhost/nhost@v0.0.0-20260417112436-ec8dab3f2cf4 go list -m github.com/nhost/nhost

Fedora 46 · fzssh · FIXED · 1.4.0-2.fc46 · FEDORA-2026-8004fcd067 · source

sudo dnf upgrade --advisory=FEDORA-2026-8004fcd067

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-2026-41574?

nhost\/auth: upgrade to 0.49.1. Exact commands for each OS are on this page.

Is CVE-2026-41574 being exploited?

CVE-2026-41574 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-2026-41574 affect?

CVE-2026-41574 affects nhost\/auth. Severity is critical (CVSS 9.8). Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.49.1, Nhost automatically links an incoming OAuth identity to an existing Nhost account when the email addresses match. This is only safe when the email has been

How urgent is CVE-2026-41574?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-34969 HIGH 7.5 UPGRADE Nhost is an open source Firebase alternative with GraphQL

References

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