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      <title>CVE-2026-41694 — SAML Payloads Decrypted Without Valid Signature</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-41694</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Spring Security&lt;/p&gt;
&lt;p&gt;Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackers may be able to craft these SAML payloads and use the Service Provider as a decryption oracle.&lt;/p&gt;
&lt;p&gt;Affected versions:
Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Spring Security&lt;/p&gt;
&lt;p&gt;Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackers may be able to craft these SAML payloads and use the Service Provider as a decryption oracle.&lt;/p&gt;
&lt;p&gt;Affected versions:
Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.&lt;/p&gt;</content:encoded>
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