Envoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with mixed-case schemes such as `htTp` or `htTps`, or the bypassing of some requests such as `https` in unencrypted connections. With a fix in versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, Envoy will now lowercase scheme values by default, and change the internal scheme checks that were case-sensitive to be case-insensitive. There are no known workarounds for this issue.
CVSS Details
- CVSS 3.1 Base Score: 8.2
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade ecs-service-connect-agent | Sep 7, 2023 | Jul 25, 2023 |
| Amazon_linux_2023 | — | Upgrade ecs-service-connect-agent | Feb 17, 2025 | Jul 25, 2023 |
| Oracle_linux | — | Upgrade olcnectlUpgrade olcne-gluster-chartUpgrade olcne-metallb-chartUpgrade olcne-agentUpgrade istioUpgrade olcne-olm-chartUpgrade olcne-prometheus-chartUpgrade olcne-multus-chartUpgrade olcne-nginxUpgrade olcne-grafana-chartUpgrade istio-istioctlUpgrade olcne-istio-chartUpgrade olcne-utilsUpgrade olcne-rook-chartUpgrade olcne-api-serverUpgrade olcne-kubevirt-chartUpgrade olcne-oci-ccm-chartUpgrade virtctlUpgrade olcne-calico-chart | Sep 6, 2023 | Jul 25, 2023 |
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