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Servers and applications

CVE-2021-32779

Incorrectly handling of URI '#fragment' element as part of the path element

Severity
High 8.3
Published
24 Aug 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.16.5, 1.17.4, 1.18.4
Also known as
GHSA-r222-74fw-jqr9
Sources
NVD, Project advisories (GitHub)

Description

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions envoy incorrectly handled a URI '#fragment' element as part of the path element. Envoy is configured with an RBAC filter for authorization or similar mechanism with an explicit case of a final "/admin" path element, or is using a negative assertion with final path…

Affected software

SoftwareAffected versions
EnvoyServers and applications · cpe:a:envoyproxy:envoy
  • From 1.16.0 before 1.16.5
  • From 1.17.0 before 1.17.4
  • From 1.18.0 before 1.18.4
  • Version 1.19.0
EnvoyServers and applications · github:envoyproxy/envoy
  • Version 1.16.4
  • Version 1.17.3
  • Version 1.18.3
  • Version 1.19.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-32779
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-32779
  • GitHub Advisory Database https://github.com/advisories/GHSA-r222-74fw-jqr9
  • github.com https://github.com/envoyproxy/envoy/security/advisories/GHSA-r222-74fw-jqr9