UpHeron
All vulnerabilities

Servers and applications

CVE-2021-29258

An issue was discovered in Envoy 1.14.0. There is a remotely exploitable crash for HTTP2 Metadata, because an empty METADATA map triggers a Reachable Assertion.

Severity
High 7.5
Published
20 May 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
EnvoyServers and applications · cpe:a:envoyproxy:envoy
  • Version 1.14.6
  • Version 1.15.3
  • Version 1.16.2
  • Version 1.17.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-29258
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-29258