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    <link>https://vulnerability.circl.lu</link>
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      <title>GHSA-gwrp-pvrq-jmwv — Path Traversal and Improper Input Validation in Apache Commons IO</title>
      <link>https://vulnerability.circl.lu/vuln/ghsa-gwrp-pvrq-jmwv</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Maven: commons-io:commons-io, Maven: com.cosium.vet:vet, Maven: com.diamondq.common:common-thirdparty.jcasbin, Maven: com.liferay:com.liferay.sass.compiler.jsass, Maven: com.virjar:ratel-api, Maven: net.hasor:cobble-lang, Maven: org.apache.commons:commons-io, Maven: org.apache.servicemix.bundles:org.apache.servicemix.bundles.commons-io, Maven: org.checkerframework.annotatedlib:commons-io, Maven: org.smartboot.servlet:servlet-core&lt;/p&gt;
&lt;p&gt;In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like &amp;#34;//../foo&amp;#34;, or &amp;#34;\\..\foo&amp;#34;, the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus &amp;#34;limited&amp;#34; path traversal), if the calling code would use the result to construct a path value.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Maven: commons-io:commons-io, Maven: com.cosium.vet:vet, Maven: com.diamondq.common:common-thirdparty.jcasbin, Maven: com.liferay:com.liferay.sass.compiler.jsass, Maven: com.virjar:ratel-api, Maven: net.hasor:cobble-lang, Maven: org.apache.commons:commons-io, Maven: org.apache.servicemix.bundles:org.apache.servicemix.bundles.commons-io, Maven: org.checkerframework.annotatedlib:commons-io, Maven: org.smartboot.servlet:servlet-core&lt;/p&gt;
&lt;p&gt;In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like &amp;#34;//../foo&amp;#34;, or &amp;#34;\\..\foo&amp;#34;, the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus &amp;#34;limited&amp;#34; path traversal), if the calling code would use the result to construct a path value.&lt;/p&gt;</content:encoded>
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