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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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      <title>CVE-2026-10532 — Logback deserialization whitelist bypass for Proxy objects</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-10532</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; QOS.CH Sarl logback&lt;/p&gt;
&lt;p&gt;Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection, albeit heavily restricted.&lt;/p&gt;
&lt;p&gt;More precisely, an attacker able to influence serialized data sent to 
SimpleSocketServer or SimpleSSLSocketServer can instantiate Proxy objects.&lt;/p&gt;
&lt;p&gt;Although deserialization is heavily restricted by HardenedObjectInputStream and no 
practical way to achieve remote code execution or significant privilege 
escalation has been identified, this issue constitutes a bypass of the 
intended security restrictions.&lt;/p&gt;
&lt;p&gt;This issue affects logback: through 1.5.33 inclusive.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; QOS.CH Sarl logback&lt;/p&gt;
&lt;p&gt;Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection, albeit heavily restricted.&lt;/p&gt;
&lt;p&gt;More precisely, an attacker able to influence serialized data sent to 
SimpleSocketServer or SimpleSSLSocketServer can instantiate Proxy objects.&lt;/p&gt;
&lt;p&gt;Although deserialization is heavily restricted by HardenedObjectInputStream and no 
practical way to achieve remote code execution or significant privilege 
escalation has been identified, this issue constitutes a bypass of the 
intended security restrictions.&lt;/p&gt;
&lt;p&gt;This issue affects logback: through 1.5.33 inclusive.&lt;/p&gt;</content:encoded>
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