CVE-2026-47207
Medium · 6.5CVSS
6.5
EPSS
0.4%
Published
Jun 26, 2026
CISA due date
—
The record
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, Envoy crashes if an ext_proc server sends a single gRPC message containing multiple, specially crafted ProcessingResponse messages. This can occur when the first response in the batch causes the gRPC stream object to be destroyed, leading to a use-after-free error when Envoy attempts to process subsequent responses in the same gRPC message. This vulnerability is fixed in 1.35.13, 1.36.9, 1.37.5, and 1.38.3.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Tumbleweed | istioctl | 0 | 1.30.2-1.1 |
Related vulnerabilities
- CVE-2026-47220 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48090 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-47205 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48743 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48706 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48044 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-47775 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-47221 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl