<?xml version="1.0" encoding="utf-8"?>
  <?xml-stylesheet type="text/xsl" href="sa-render.xsl"?>
  <update from="huaweicloud.com" type="security" status="stable" version="1">
    <id>HCE3-SA-2025-0138</id>
    <title>An update for PyYAML is now available for HCE 3.0</title>
    <severity>Critical</severity>
    <release>HCE 3.0</release>
    <issued date="2025-10-09 06:38:18"/>
    <updated date="2025-10-09 06:38:18"/>
    <references>
      <reference href="https://nvd.nist.gov/vuln/detail/CVE-2020-14343" id="CVE-2020-14343" title="CVE-2020-14343 Base Score: 9.8 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" type="cve"/>
    </references>
    <description>Security Fix(es):

A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747. (CVE-2020-14343)
</description>
    <pkglist>
      <collection short="HCE 3.0" package="PyYAML">
        <name>HCE 3.0</name>
        <package arch="x86_64" name="python3-pyyaml" version="6.0.1" release="2.r2.hce3">
          <filename>python3-pyyaml-6.0.1-2.r2.hce3.x86_64.rpm</filename>
        </package>
        <package arch="aarch64" name="python3-pyyaml" version="6.0.1" release="2.r2.hce3">
          <filename>python3-pyyaml-6.0.1-2.r2.hce3.aarch64.rpm</filename>
        </package>
      </collection>
    </pkglist>
  </update>
