<?xml version='1.0' encoding='UTF-8'?>
<?xml-stylesheet href="/static/style.xsl" type="text/xsl"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/" version="2.0">
  <channel>
    <title>Most recent entries from all</title>
    <link>https://cve.radiocsirt.org</link>
    <description>Contains only the most 10 recent entries.</description>
    <docs>http://www.rssboard.org/rss-specification</docs>
    <generator>python-feedgen</generator>
    <language>en</language>
    <lastBuildDate>Wed, 07 Oct 2026 11:34:09 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-13577 — Dancer2 versions before 2.2.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-13577</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Dancer2&lt;/p&gt;
&lt;p&gt;Dancer2 versions before 2.2.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable.&lt;/p&gt;
&lt;p&gt;Dancer2::Core::Role::SessionFactory::generate_id silently falls back to a built-in rand-derived session id unless both Math::Random::ISAAC::XS and Crypt::URandom are available.&lt;/p&gt;
&lt;p&gt;The fallback session id is generated from a SHA-1 hash of a call to the built-in rand function, the absolute path of the Dancer2::Core::Role::SessionFactory module, an internal counter, the process id, the module instance memory address, and a shuffled string of characters (using the List::Util::shuffle function, which also uses the built-in rand function).&lt;/p&gt;
&lt;p&gt;These are all low-entropy and easily guessed sources.&lt;/p&gt;
&lt;p&gt;The built-in rand() function is seeded with 32-bits and considered unsuitable for security applications.&lt;/p&gt;
&lt;p&gt;Predictable session ids could allow an attacker to gain access to systems.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Dancer2&lt;/p&gt;
&lt;p&gt;Dancer2 versions before 2.2.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable.&lt;/p&gt;
&lt;p&gt;Dancer2::Core::Role::SessionFactory::generate_id silently falls back to a built-in rand-derived session id unless both Math::Random::ISAAC::XS and Crypt::URandom are available.&lt;/p&gt;
&lt;p&gt;The fallback session id is generated from a SHA-1 hash of a call to the built-in rand function, the absolute path of the Dancer2::Core::Role::SessionFactory module, an internal counter, the process id, the module instance memory address, and a shuffled string of characters (using the List::Util::shuffle function, which also uses the built-in rand function).&lt;/p&gt;
&lt;p&gt;These are all low-entropy and easily guessed sources.&lt;/p&gt;
&lt;p&gt;The built-in rand() function is seeded with 32-bits and considered unsuitable for security applications.&lt;/p&gt;
&lt;p&gt;Predictable session ids could allow an attacker to gain access to systems.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2026-13577</guid>
    </item>
  </channel>
</rss>
