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Vulnerabilities

Vulnerability · CVE-2023-3128

Grafana is validating Azure AD accounts based on the email claim.

Published Jun 22, 2023 · catalog updated Jun 17, 2026 · Grafana is validating Azure

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-3128. EPSS is 4.00%. Act only if a listed version of Grafana is validating Azure is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Grafana is validating Azure).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
4.00%
Remediation
Version ranges on file
Affected products
cpe 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe grafana/grafana< 8.5.27
  • cpe grafana/grafana< 9.2.20
  • cpe grafana/grafana< 9.3.16

How to fix CVE-2023-3128

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-3128. EPSS is 4.00%. Act only if a listed version of Grafana is validating Azure is installed.

Which versions are affected?

Compare what you have installed with < 8.5.27, < 9.2.20, < 9.3.16. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-290: Authentication Bypass by Spoofing. EPSS 4.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Grafana security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 22, 2023 · Monitored products — high

    Detected

    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.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2023-3128

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2023-3128

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — highNov 2, 2026