Description
Envoy is a cloud-native high-performance edge/middle/service proxy. Prior to 1.33.1, 1.32.4, 1.31.6, and 1.30.10, Envoy's ext_proc HTTP filter is at risk of crashing if a local reply is sent to the external server due to the filter's life time issue. A known situation is the failure of a websocket handshake will trigger a local reply leading to the crash of Envoy. This vulnerability is fixed in 1.33.1, 1.32.4, 1.31.6, and 1.30.10.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/envoyproxy/envoy/security/advisories/GHSA-cf3q-gqg7-3fm9
Scores
CVSS v3
6.5
EPSS
0.0003
EPSS Percentile
8.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-460
Status
published
Products (3)
envoyproxy/envoy
1.33.0
envoyproxy/envoy
< 1.30.10
envoyproxy/envoy
0 - 1.30.10Go
Published
Mar 21, 2025
Tracked Since
Feb 18, 2026