CVE-2026-48044
Envoy Zstd Decompressor: Ratio Check at Wrong Loop Depth lead to memory explosion
描述
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation (ZstdDecompressorImpl). When zstd decompression is enabled, processing a specially crafted, highly compressed zstd payload can lead to massive memory allocation. An attacker can exploit this to cause severe memory exhaustion, potentially resulting in an Out-Of-Memory (OOM) kill and Denial of Service (DoS) for the Envoy proxy. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
如何修補 CVE-2026-48044
要修補 CVE-2026-48044,請將受影響套件升級到下列已修補版本。
- —升級至 1.35.11 或更新版本
CVE-2026-48044 正在被利用嗎?
低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 1.23.0, < 1.35.11, >= 1.36.0, < 1.36.7, >= 1.37.0, < 1.37.3, >= 1.38.0, < 1.38.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |