CVE-2026-26311— Envoy 资源管理错误漏洞

Envoy HTTP: filter chain execution on reset streams causing UAF crash

Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, a logic vulnerability in Envoy's HTTP connection manager (FilterManager) that allows for Zombie Stream Filter Execution. This issue creates a "Use-After-Free" (UAF) or state-corruption window where filter callbacks are invoked on an HTTP stream that has already been logically reset and cleaned up. The vulnerability resides in source/common/http/filter_manager.cc within the FilterManager::decodeData method. The ActiveStream object remains valid in memory during the deferred deletion window. If a DATA frame arrives on this stream immediately after the reset (e.g., in the same packet processing cycle), the HTTP/2 codec invokes ActiveStream::decodeData, which cascades to FilterManager::decodeData. FilterManager::decodeData fails to check the saw_downstream_reset_ flag. It iterates over the decoder_filters_ list and invokes decodeData() on filters that have already received onDestroy(). This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

释放后使用

Envoy 资源管理错误漏洞

Envoy是Enphase开源的一款用于连接智能家居设备的网关程序。 Envoy 1.37.1之前版本、1.36.5之前版本、1.35.8之前版本和1.34.13之前版本存在资源管理错误漏洞，该漏洞源于HTTP连接管理器逻辑缺陷，可能导致释放后重用或状态损坏。

N/A

N/A