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.
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Fri, 26 Jun 2026 19:30:00 +0000
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| 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. | |
| Title | Envoy crashes if multiple unexpected ext_proc responses are packed into one gRPC message | |
| Weaknesses | CWE-416 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-26T18:30:08.843Z
Reserved: 2026-05-18T22:25:21.257Z
Link: CVE-2026-47207
Updated: 2026-06-26T18:29:45.023Z
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OpenCVE Enrichment
Updated: 2026-06-26T19:30:04Z