#oauth

Cybersecurity researchers have disclosed details of yet another maximum-severity security flaw in n8n, a popular workflow automation platform, that allows an unauthenticated remote attacker to gain complete control over susceptible instances. The vulnerability, tracked as CVE-2026-21858 (CVSS score: 10.0), has been codenamed Ni8mare by Cyera Research Labs. Security researcher Dor Attias has been

## Security Advisory: Open Redirect in Directus SAML Authentication ### Summary An open redirect vulnerability exists in the Directus SAML authentication callback endpoint. The `RelayState` parameter is used in redirects without proper validation against an allowlist of permitted domains. ### Vulnerability Description During SAML authentication, the `RelayState` parameter is intended to preserve the user's original destination. However, while the login initiation flow validates redirect targets against allowed domains, this validation is not applied to the callback endpoint. This allows an attacker to craft a malicious authentication request that redirects users to an arbitrary external URL upon completion. The vulnerability is present in both the success and error handling paths of the callback. ### Impact - **Phishing**: Users can be redirected to attacker-controlled sites that mimic legitimate login pages - **Credential theft**: Chained attacks may leverage the redirect to ca...

Security experts at Zenity Labs warn that Anthropic’s new agentic browser extension, Claude in Chrome, could bypass traditional web security, exposing private data and login tokens to potential hijackers.

Last week’s cyber news in 2025 was not about one big incident. It was about many small cracks opening at the same time. Tools people trust every day behave in unexpected ways. Old flaws resurfaced. New ones were used almost immediately. A common theme ran through it all in 2025. Attackers moved faster than fixes. Access meant for work, updates, or support kept getting abused. And damage did not

Hacktivists have scraped almost 100% of the content available on Spotify. Is there anything users need to worry about?

Passwd is designed specifically for organizations operating within Google Workspace. Rather than competing as a general consumer password manager, its purpose is narrow, and business-focused: secure credential storage, controlled sharing, and seamless Workspace integration. The platform emphasizes practicality over feature overload, aiming to provide a reliable system for teams that already rely

Cybersecurity researchers have disclosed details of a new malicious package on the npm repository that works as a fully functional WhatsApp API, but also contains the ability to intercept every message and link the attacker's device to a victim's WhatsApp account. The package, named "lotusbail," has been downloaded over 56,000 times since it was first uploaded to the registry by a user named "

**Description** The OAuth login state tokens are completely stateless and carry no per-request entropy or any data that could link them to the session that initiated the OAuth flow. `generate_state_token()` is always called with an empty `state_data` dict, so the resulting JWT only contains the fixed audience claim plus an expiration timestamp. \[1\] ```py state_data: dict[str, str] = {} state = generate_state_token(state_data, state_secret) authorization_url = await oauth_client.get_authorization_url( authorize_redirect_url, state, scopes, ) ``` *fastapi\_users/router/oauth.py:65-71* On callback, the library merely checks that the JWT verifies under `state_secret` and is unexpired; there is no attempt to match the state value to the browser that initiated the OAuth request, no correlation cookie, and no server-side cache. \[2\] ```py try: decode_jwt(state, state_secret, [STATE_TOKEN_AUDIENCE])...

Versions of the package fastapi-sso before 0.19.0 are vulnerable to Cross-site Request Forgery (CSRF) due to the improper validation of the OAuth state parameter during the authentication callback. While the get_login_url method allows for state generation, it does not persist the state or bind it to the user's session. Consequently, the verify_and_process method accepts the state received in the query parameters without verifying it against a trusted local value. This allows a remote attacker to trick a victim into visiting a malicious callback URL, which can result in the attacker's account being linked to the victim's internal account.

This week’s ThreatsDay Bulletin tracks how attackers keep reshaping old tools and finding new angles in familiar systems. Small changes in tactics are stacking up fast, and each one hints at where the next big breach could come from. From shifting infrastructures to clever social hooks, the week’s activity shows just how fluid the threat landscape has become. Here’s the full rundown of what