All vulnerabilities

Servers and applications

CVE-2020-25017

Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.

Severity
High 8.3
Published
1 Oct 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.12.7, 1.13.4, 1.14.4, 1.15.1
Sources
NVD

Affected software

SoftwareAffected versions
EnvoyServers and applications · cpe:a:envoyproxy:envoy
  • Every version before 1.12.7
  • From 1.13.0 before 1.13.4
  • From 1.14.0 before 1.14.4
  • From 1.15.0 before 1.15.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-25017
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-25017