UpHeron
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Servers and applications

CVE-2020-8660

CNCF Envoy through 1.13.0 TLS inspector bypass. TLS inspector could have been bypassed (not recognized as a TLS client) by a client using only TLS 1.3. Because TLS extensions (SNI, ALPN) were not inspected, those connections might have been matched to a wrong filter chain, possibly bypassing some security restrictions in the process.

Severity
Medium 5.3
Published
4 Mar 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.12.3, 1.13.1
Sources
NVD

Affected software

SoftwareAffected versions
EnvoyServers and applications · cpe:a:envoyproxy:envoy
  • Every version before 1.12.3
  • From 1.13.0 before 1.13.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-8660
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-8660