Python Flask-Security-Too <=5.3.2 - Open Redirect

An open redirect vulnerability exists in the python package Flask-Security-Too prior to version 5.3.3. Attackers can abuse the 'next' parameter on the /login and /register routes to redirect unsuspecting users to malicious sites via crafted URLs, which could lead to phishing or other attacks NVD...

Python Flask-Security - Open Redirect

Python Flask-Security contains an open redirect vulnerability. Existing code validates that the URL specified in the next parameter is either relative or has the same network location as the requesting URL. Certain browsers accept and fill in the blanks of possibly incomplete or malformed URLs. A...

CVE-2026-46715

A flaw was found in Flask-Security-Too. The OAuth reauthentication process in the affected component can incorrectly mark a user's session as recently reauthenticated after an attacker verifies their own OAuth account within an already authenticated but stale victim session. This allows an attack...

CVE-2026-46715

Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim...

CVE-2026-46715

Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim...

EUVD-2026-46039

Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim...

CVE-2026-46715 Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim...

CVE-2026-46715 Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim...

CVE-2026-46715

Summary of CVE-2026-46715 (Flask-Security-Too) Affected: Flask-Security-Too up to version 5.8.0. Issue: in the OAuth reauthentication flow, the verification callback can mark a victim’s session as freshly reauthenticated after an OAuth identity belonging to a different user is verified. If an att...

CVE-2026-46715 Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim...

Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Summary Flask-Security-Too 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim session, they can complete OAuth verification using their own OAuth...

PYSEC-2026-2478 Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance

Summary Flask-Security-Too 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim session, they can complete OAuth verification using their own OAuth...

PT-2026-59145

Summary Flask-Security-Too 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim session, they can complete OAuth verification using their own OAuth...

GHSA-F66Q-9RF6-8795 Flask-Security-Too: WebAuthn reauthentication freshness bypass via cross-user assertion

Summary Flask-Security-Too 5.8.0 and 5.8.1 mark a session as reauthentication-fresh after processing a WebAuthn assertion whose proven credential belongs to a different user than the currently authenticated session user. The check that GHSA-97r5-pg8x-p63p added on the OAuth reauthentication path...

PYSEC-2026-809 Flask-Security vulnerable to Open Redirect

This affects all versions of package Flask-Security. When using the getpostlogoutredirect and getpostloginredirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\evil.com/path. This vulnerability is only...

GHSA-W2J7-F3C6-G8CW Flask-Security has an Open Redirect issue

Open Redirect in Flask-Security Summary flasksecurity.utils.validateredirecturl can allow an attacker-controlled redirect URL when subdomain redirects are enabled. The bypass uses a backslash inside the URL authority/host: text http://evil.com.whitelist.com http://evil.com%5C.whitelist.com...

CVE-2026-42490

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controlling a particular guest. Some of these...

CVE-2026-42489

CVE-2026-42489 / 42490 (Xen) : The Xen domctl mechanism used to create/manage guests relies on a system-wide lock whose acquisition lacks fairness. In environments using XSM/Flask, some operations may acquire this lock before permission checks, creating a potential abuse window. Documents do not ...

Always-Incorrect Control Flow Implementation

Overview Flask-Security is a Simple security for Flask apps. Affected versions of this package are vulnerable to Always-Incorrect Control Flow Implementation in the OAuth reauthentication for stale sessions. An attacker can perform unauthorized account actions by completing OAuth verification wit...

Always-Incorrect Control Flow Implementation

Overview Affected versions of this package are vulnerable to Always-Incorrect Control Flow Implementation in the OAuth reauthentication for stale sessions. An attacker can perform unauthorized account actions by completing OAuth verification with their own identity in a stale, authenticated victi...