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Servers and applications

CVE-2026-111809

Apache Traffic Server: HEAD requests carrying Content-Length or Transfer-Encoding enable request smuggling

Severity
Critical 9.3
Published
21 Oct 2026
Last changed
28 Oct 2026
Added to UpHeron
3 Nov 2026
Sources
CVE Program

Affected software

SoftwareAffected versions
Apache Traffic ServerServers and applications · cna:apache software foundation|apache traffic server
  • From 8.0.0 up to 8.1.11
  • From 9.0.0 up to 9.2.15
  • From 10.0.0 up to 10.1.4
  • Version 10.2.0

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-111809