CVE-2026-9084

MISP’s OIDC authentication plugin allowed automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account had no stored sub value. Under insecure or untrusted IdP configurations where email ownership is not enforced, an attacker with a valid...

CVE-2026-9084

MISP’s OIDC authentication plugin allowed automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account had no stored sub value. Under insecure or untrusted IdP configurations where email ownership is not enforced, an attacker with a valid...

CVE-2026-9084

MISP OIDC authentication plugin is affected. The issue allows automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account has no stored sub value. Under insecure/untrusted IdP configurations where email ownership isn’t enforced, an attac...

EUVD-2026-31123

MISP’s OIDC authentication plugin allowed automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account had no stored sub value. Under insecure or untrusted IdP configurations where email ownership is not enforced, an attacker with a valid...

CVE-2026-40574

A flaw was found in OAuth2 Proxy, a reverse proxy providing authentication using OAuth2 providers. A remote attacker can exploit an authorization bypass vulnerability by crafting a malicious email claim. This allows the attacker to bypass emaildomain restrictions, which are used to limit access t...

CVE-2026-40574

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

grafana: account takeover possible when using Azure AD OAuth

A flaw was found in Grafana, which validates Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique across Azure AD tenants, which enables Grafana account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant AzureAD OAuth...

BIT-GRAFANA-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...

grafana: account takeover possible when using Azure AD OAuth

A flaw was found in Grafana, which validates Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique across Azure AD tenants, which enables Grafana account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant AzureAD OAuth...

grafana: account takeover possible when using Azure AD OAuth

A flaw was found in Grafana, which validates Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique across Azure AD tenants, which enables Grafana account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant AzureAD OAuth...

SUSE CVE-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...

CVE-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...

UBUNTU-CVE-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...

Authentication flaw

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...

Grafana authentication bypass using Azure AD OAuth

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...

PT-2023-3223 · Grafana +7 · Grafana +7

Name of the Vulnerable Software and Affected Versions: Grafana affected versions not specified Description: The issue is related to Grafana validating Azure AD accounts based on the email claim. Since the profile email field in Azure AD is not unique and can be easily modified, this leads to...

Grafana -- Account takeover / authentication bypass

Grafana Labs reports: Grafana validates Azure Active Directory accounts based on the email claim. On Azure AD, the profile email field is not unique across Azure AD tenants. This can enable a Grafana account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant...

Potential Risk of Privilege Escalation in Azure AD Applications

Summary Microsoft has developed mitigations for an insecure anti-pattern used in Azure AD AAD applications highlighted by Descope, and reported to Microsoft, where use of the email claim from access tokens for authorization can lead to an escalation of privilege. An attacker can falsify the email...