CVE-2026-15571

A flaw was found in the legacy client-initiated account-linking endpoint of Keycloak, a widely used open-source identity and access management solution. The mechanism used to protect the account-linking process from unauthorized requests relies on a hash that can be predicted by a malicious OIDC...

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...

Budibase: OIDC SSO account takeover: incoming identity linked by email without checking email_verified

Summary Budibase's OIDC SSO login links an incoming SSO identity to an existing Budibase account by email address alone, without ever checking the emailverified claim of the OIDC ID token. Budibase first tries to match the IdP sub; when that misses any fresh attacker IdP account it silently falls...

CVE-2026-10130

QueryWeaver contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid session tokens for existing accounts by submitting a signup request with a known victim email address. The signup route unconditionally creates and links a new token to the matching...

MISP 授权问题漏洞

MISP is a set of open-source software solutions developed by MISP. This product is used for collecting, storing, distributing, and sharing network security metrics. It also includes features for analyzing threats to network security and malware analysis. MISP has an authorization vulnerability;...

CVE-2026-42354 Sentry: Improper authentication on SAML SSO process allows user identity linking

Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity...

GHSA-6G38-8J4P-J3PR Nhost Vulnerable to Account Takeover via OAuth Email Verification Bypass

Summary Nhost automatically links an incoming OAuth identity to an existing Nhost account when the email addresses match. This is only safe when the email has been verified by the OAuth provider. Nhost's controller trusts a profile.EmailVerified boolean that is set by each provider adapter. The...

Sentry: Improper authentication on SAML SSO process allows user identity linking

Impact A critical vulnerability was discovered in the SAML SSO implementation of Sentry. It was reported to us via our private bug bounty program. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity Provider and another organization on the same...

EUVD-2026-7736

Sentry: Improper authentication on SAML SSO process allows user identity linking...

Improper Authentication

ZITADEL is vulnerable to Improper Authentication. The vulnerability is due to improper enforcement of organization login policies during the federation auto-linking process, which allows an attacker to authenticate through a disabled identity provider and link their external identity to an existi...

CVE-2026-27197 Sentry: Improper Authentication on SAML SSO process allows user identity linking

Sentry is a developer-first error tracking and performance monitoring tool. Versions 21.12.0 through 26.1.0 have a critical vulnerability in its SAML SSO implementation which allows an attacker to take over any user account by using a malicious SAML Identity Provider and another organization on t...