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CVE details

CVE-2026-58155

Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

Score
9.2 critical
Published
2026-07-29
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
www/trafficservertrafficserver10.1.0unaddressedgaod@hychen.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>trafficserver</name>
	<range><lt>9.2.15</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Apache Traffic Server truncates over-long header names, allowing
	header aliasing, request smuggling, and policy bypass.



This issue
	affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0
	through 9.2.14, from 10.0.0 through 10.1.3.



Users are recommended
	to upgrade to version 9.2.15 or 10.1.4, which fix the issue.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-58155</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-58155</url>
    </references>
    <dates>
      <discovery>2026-07-29</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>