CVE-2026-88952 OAuth2 sign-in attached to an existing account without an email comparison in AshAuthentication

Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker to be signed in as another user by linking an OAuth2 identity to an account that is not theirs. AshAuthentication.Strategy.OAuth2.UserResolver.resolve/3 matches an existing account using the register action...

CVE-2026-61641

Wallos (open-source personal subscription tracker) versions 4.0.0 through before 4.9.6 contain an OIDC login flaw where an incoming identity is linked to an existing local account by matching the email claim alone, without verifying the IdP's email_verified attribute. When the configured IdP allo...

CVE-2026-61641 Wallos: OIDC account takeover via email-based account linking without `email_verified` check

Wallos is an open-source, self-hostable personal subscription tracker. From version 4.0.0 to before version 4.9.6, Wallos's OIDC login links an incoming OIDC identity to an existing local account by matching the email claim alone, without verifying that the IdP marked that email as verified...

CVE-2026-73302 Budibase: OIDC SSO account takeover: incoming identity linked by email without checking email_verified

Budibase is an open-source low-code platform. Prior to 3.39.30, the OIDC flow in packages/backend-core/src/middleware/passport/sso/oidc.ts resolved an email without getEmailVerified or an emailverified requirement, and packages/backend-core/src/middleware/passport/sso/sso.ts then used...

CVE-2026-73302

Budibase (open-source low-code platform) has a vulnerability in its OIDC SSO flow prior to 3.39.30 where the email is used as an account-linking key without verifying email_verified. The OIDC verify callback reads email from the token and does not check email_verified, causing a fallback merge in...

CVE-2026-73302 Budibase: OIDC SSO account takeover: incoming identity linked by email without checking email_verified

Budibase is an open-source low-code platform. Prior to 3.39.30, the OIDC flow in packages/backend-core/src/middleware/passport/sso/oidc.ts resolved an email without getEmailVerified or an emailverified requirement, and packages/backend-core/src/middleware/passport/sso/sso.ts then used...

CVE-2026-18639

CVE-2026-18639 affects Velociraptor's OIDC authenticator. The vulnerability arises when Velociraptor uses the email claim as a username; some IdPs allow changing the email without verification, and some do not set or verify the email_verified claim. This can enable a user to impersonate another b...

CVE-2026-18639 Velociraptor OIDC Authenticator susceptible to email spoofing

When Velociraptor is configured to use an OIDC IdP for authentication, it uses the email claim as a username. However, some IdP allow users to change the email claim without verification. Some IdPs do not set the "emailverified" claim and do not actually verify the email. This allows a user to...

CVE-2026-55075 Coder vulnerable to OIDC account takeover via email-based user matching and email_verified bypass

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, two flaws in Coder's OIDC login chained into account takeover. Email-based user matching fell back to linking by email without checking for an existing link...

CVE-2026-14781

A flaw in Keycloak’s OIDC broker (org.keycloak.broker.oidc) causes incorrect synchronization of the email_verified claim. When trustEmail=true and the userinfo endpoint is enabled, Keycloak uses email from userinfo but takes email_verified from the id_token without validating that it corresponds ...