GHSA-M3CX-MWPG-32JG nebula-mesh: Unauthenticated OIDC login endpoint allocates unbounded in-memory state entries without rate limiting

Summary When OIDC is enabled, GET /ui/oidc/login is reachable without authentication and is registered outside the Web UI rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map for 10m. Expired states are swept lazily, but there is no rat...

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

Summary 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 to a different IdP subject and the emailverified claim was only enforced when present as a boolean false so an absent or non-boolean...

CVE-2026-42350

Kargo Open Redirect in UI OIDC Login Flow (CVE-2026-42350). Affected versions: prior to 1.7.10, 1.8.13, 1.9.8, and 1.10.2. Root cause: open redirect via the redirectTo query parameter in the UI OIDC login flow. Impact: describes an open redirect vulnerability with potential to redirect users to e...

The vulnerability of the OpenID Connect Login service for the Keycloak identity and access management software allows a hacker to disclose protected information, alter the appearance of the web page, and perform phishing attacks.

The vulnerability of the OpenID Connect Login service for the Keycloak identity management and access control system exists due to the lack of measures taken to protect the website structure. Exploiting this vulnerability could allow a malicious actor to disclose sensitive information, alter the...