Medium severity6.5NVD Advisory· Published Jun 26, 2026· Updated Jun 27, 2026
CVE-2026-47207
CVE-2026-47207
Description
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 products
4cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*range: >=1.34.0,<1.35.13
- (no CPE)range: 1.34.0 - 1.35.13, 1.36.0 - 1.36.9, 1.37.0 - 1.37.5, 1.38.0 - 1.38.3
- osv-coords2 versions
< 1.30.2-1.1+ 1 more
- (no CPE)range: < 1.30.2-1.1
- (no CPE)range: >= 1.34.0, < 1.35.13
Patches
Vulnerability mechanics
References
1- github.com/envoyproxy/envoy/security/advisories/GHSA-68cv-hq5f-g6xvnvdExploitVendor Advisory
News mentions
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