CVE-2023-3128 — Vulnerability in github.com/grafana/grafana — CVE...

CRITICAL

Grafana vulnerable to Authentication Bypass by Spoofing

Published June 22, 2023Updated August 7, 2026Source: osv

Summary

Grafana is validating Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique and can be easily modified. This leads to account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant app.

Advisory Timeline

First published June 22, 2023 (1208 days ago).
Last revised August 7, 2026 — 1141 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Update github.com/grafana/grafana to 8.5.27 or later

go get github.com/grafana/grafana@v8.5.27

Update github.com/grafana/grafana to 9.3.16 or later

go get github.com/grafana/grafana@v9.3.16

Update github.com/grafana/grafana to 9.2.20 or later

go get github.com/grafana/grafana@v9.2.20

Update github.com/grafana/grafana to 9.4.13 or later

go get github.com/grafana/grafana@v9.4.13

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: go (1).

Package	Ecosystem	Affected	Fixed In
github.com/grafana/grafana	go	All versions	8.5.27
github.com/grafana/grafana	go	All versions	9.3.16
github.com/grafana/grafana	go	All versions	9.2.20
github.com/grafana/grafana	go	All versions	9.4.13

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-290
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.4 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References

Frequently Asked Questions

What is CVE-2023-3128?: Grafana vulnerable to Authentication Bypass by Spoofing This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.4/10).
How do I check if my project is affected by CVE-2023-3128?: CVE-2023-3128 affects github.com/grafana/grafana. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-3128 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

9.4

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-mpv3-g8m3-3fjc

BIT-grafana-2023-3128

GHSA-gxh2-6vvc-rrgp

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