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      <title>CVE-2026-42561 — Python-Multipart: Denial of Service via unbounded multipart part headers</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-42561</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Kludex python-multipart, Red Hat Ansible Automation Platform 2.6, Red Hat Ansible Automation Platform 2.7, Red Hat Migration Toolkit for Applications 8.2, Red Hat OpenShift AI 3.3, Red Hat Satellite 6.17, Red Hat Satellite 6.19, Red Hat Exploit Intelligence, Red Hat OpenShift Lightspeed, Red Hat AI Inference Server and 4 more&lt;/p&gt;
&lt;p&gt;Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.27, python-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of part headers or the size of an individual part header. An attacker could send a request with either many repeated headers without terminating the header block or a single very large header value, causing excessive CPU work before request rejection or completion. This vulnerability is fixed in 0.0.27.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Kludex python-multipart, Red Hat Ansible Automation Platform 2.6, Red Hat Ansible Automation Platform 2.7, Red Hat Migration Toolkit for Applications 8.2, Red Hat OpenShift AI 3.3, Red Hat Satellite 6.17, Red Hat Satellite 6.19, Red Hat Exploit Intelligence, Red Hat OpenShift Lightspeed, Red Hat AI Inference Server and 4 more&lt;/p&gt;
&lt;p&gt;Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.27, python-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of part headers or the size of an individual part header. An attacker could send a request with either many repeated headers without terminating the header block or a single very large header value, causing excessive CPU work before request rejection or completion. This vulnerability is fixed in 0.0.27.&lt;/p&gt;</content:encoded>
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