UpHeron
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Servers and applications

CVE-2023-27496

Crash when a redirect url without a state param is received in the oauth filter

Severity
High 7.5
Published
4 Apr 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.22.9, 1.23.6, 1.24.4, 1.25.3
Also known as
GHSA-j79q-2g66-2xv5
Sources
NVD, Project advisories (GitHub)

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal…

Affected software

SoftwareAffected versions
EnvoyServers and applications · cpe:a:envoyproxy:envoy
  • Every version before 1.22.9
  • From 1.23.0 before 1.23.6
  • From 1.24.0 before 1.24.4
  • From 1.25.0 before 1.25.3
EnvoyServers and applications · github:envoyproxy/envoy
  • Every version before 1.22.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-27496
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-27496
  • GitHub Advisory Database https://github.com/advisories/GHSA-j79q-2g66-2xv5
  • github.com https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5