← Vulnerability feed

Vulnerability record · CVE-2023-3128 · published 22 June 2023

CVE-2023-3128: Grafana authentication bypass by spoofing vulnerability

Grafana · Grafana

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.

9.8 CVSS 3.1 Critical EPSS 4.0% · top 9.8% CWE-290 · Authentication bypass by spoofing
9.8CVSS 3.1 base score
4.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/grafana/bugbounty/security/advisories/GHSA-gxh2-6vvc-rrgp Vendor Advisory
https://grafana.com/security/security-advisories/cve-2023-3128/ Vendor Advisory
https://security.netapp.com/advisory/ntap-20230714-0004/ Third Party Advisory
https://github.com/grafana/bugbounty/security/advisories/GHSA-gxh2-6vvc-rrgp Vendor Advisory
https://grafana.com/security/security-advisories/cve-2023-3128/ Vendor Advisory
https://security.netapp.com/advisory/ntap-20230714-0004/ Third Party Advisory

Track CVE-2023-3128 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2021-43798Grafana plugin path directory traversal allows local file readGrafana versions 8.0.0-beta1 through 8.3.0 are vulnerable to directory traversal via the plugin URL path, allowing unauthenticated access to local fi…KEVEPSS 89%analysed7.3CVE-2021-39226Grafana snapshot endpoints allow unauthenticated view and deleteGrafana exposes snapshot endpoints that resolve to the snapshot with the lowest database key when accessed via literal paths such as /dashboard/snaps…KEVEPSS 100%analysed9.8CVE-2025-41115Grafana vulnerabilitySCIM provisioning was introduced in Grafana Enterprise and Grafana Cloud in April to improve how organizations manage users and teams in Grafana by i…EPSS 17%9.8CVE-2022-28660Grafana missing authentication for critical function vulnerabilityThe querier component in Grafana Enterprise Logs 1.1.x through 1.3.x before 1.4.0 does not require authentication when X-Scope-OrgID is used. Version…EPSS 1.1%9.8CVE-2022-26148Grafana Zabbix integration exposes cleartext password in page sourceGrafana through 7.3.4, when integrated with Zabbix, embeds the Zabbix account password and URL in the HTML source of api_jsonrpc.php. Anyone who can …EPSS 53%analysed9.8CVE-2020-27846Grafana vulnerabilityA signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from th…EPSS 4.9%9.8CVE-2018-15727Grafana authentication bypass via forged remember-me cookieGrafana versions 2.x, 3.x, 4.x before 4.6.4 and 5.x before 5.2.3 allow authentication bypass because an attacker can generate a valid "remember me" c…EPSS 64%analysed9.4CVE-2024-9264Grafana SQL Expressions feature allows command injection and file readGrafana's experimental SQL Expressions feature evaluates duckdb queries containing user input without sufficient sanitization, enabling command injec…EPSS 95%analysed

Source: NIST National Vulnerability Database (record CVE-2023-3128), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.