CVEvulnerability
CVE-2026-47207
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-26
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
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 configurations
• envoyproxy envoy (>= 1.34.0 < 1.35.13)
• envoyproxy envoy (>= 1.36.0 < 1.36.9)
• envoyproxy envoy (>= 1.37.0 < 1.37.5)
• envoyproxy envoy (>= 1.38.0 < 1.38.3)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-68cv-hq5f-g6xv Exploit, Vendor Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-68cv-hq5f-g6xv Exploit, Vendor Advisory