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    <title>Most recent entries from all</title>
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    <lastBuildDate>Wed, 30 Sep 2026 22:39:43 +0000</lastBuildDate>
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      <title>CVE-2026-97846 — Keycloak-services: keycloak-services: standard token exchange v2 bypasses mtls holder-of-key binding</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-97846</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Red Hat Build of Keycloak, Red Hat Single Sign-On 7&lt;/p&gt;
&lt;p&gt;Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestricted token that bypasses these security protections.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Red Hat Build of Keycloak, Red Hat Single Sign-On 7&lt;/p&gt;
&lt;p&gt;Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestricted token that bypasses these security protections.&lt;/p&gt;</content:encoded>
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