CVE-2026-62367 Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover

Vikunja is an open-source self-hosted task management platform. In versions 1.0.0 through 2.3.0, when an administrator enables the per-provider emailfallback option on an OpenID Connect provider, Vikunja links an SSO login to a pre-existing local username+password account using only the email cla...

CVE-2026-62367 Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover

Vikunja is an open-source self-hosted task management platform. In versions 1.0.0 through 2.3.0, when an administrator enables the per-provider emailfallback option on an OpenID Connect provider, Vikunja links an SSO login to a pre-existing local username+password account using only the email cla...

CVE-2026-108157 Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking

Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that allows remote unauthenticated attackers to take over accounts by abusing automatic OAuth email linking in OAuthService.signUp. Attackers can register a victim's unverified email on an enabled OAuth/OI...

CVE-2026-93355

LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentication flow without verifying the emailverified claim...

EUVD-2026-88462

LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentication flow without verifying the emailverified claim...

CVE-2026-93355: Weak Authentication

LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentication flow without verifying the emailverified claim...

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...

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

Summary 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 registe...

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-2026-61641 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-2026-61641

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: Improper Authentication

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-2026-73302 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 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-2026-18639

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-2026-55075 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-2026-55076: Improper Authentication

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, Coder's OIDC callback checked emailverified with a direct Go bool type assertion. When an IdP returned the claim as a non-boolean for example the string...