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    <link>https://cve.radiocsirt.org</link>
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      <title>CVE-2025-14546</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2025-14546</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; fastapi-sso&lt;/p&gt;
&lt;p&gt;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&amp;#39;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&amp;#39;s account being linked to the victim&amp;#39;s internal account.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; fastapi-sso&lt;/p&gt;
&lt;p&gt;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&amp;#39;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&amp;#39;s account being linked to the victim&amp;#39;s internal account.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2025-14546</guid>
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      <title>PYSEC-2026-1362 — FastAPI SSP is vulnerable to Cross-site Request Forgery (CSRF) through improper OAuth parameter validation</title>
      <link>https://cve.radiocsirt.org/vuln/pysec-2026-1362</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PyPI: fastapi-sso&lt;/p&gt;
&lt;p&gt;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&amp;#39;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&amp;#39;s account being linked to the victim&amp;#39;s internal account.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; PyPI: fastapi-sso&lt;/p&gt;
&lt;p&gt;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&amp;#39;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&amp;#39;s account being linked to the victim&amp;#39;s internal account.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/pysec-2026-1362</guid>
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