Description
Envoy 1.12.0 allows a remote denial of service because of resource loops, as demonstrated by a single idle TCP connection being able to keep a worker thread in an infinite busy loop when continue_on_listener_filters_timeout is used."
References (4)
Core 4
Core References
Mailing List x_refsource_misc
https://groups.google.com/forum/#%21forum/envoy-users
Vendor Advisory x_refsource_misc
https://blog.envoyproxy.io
Exploit, Third Party Advisory x_refsource_confirm
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xvf-4396-cj46
Exploit, Third Party Advisory x_refsource_misc
https://github.com/istio/istio/issues/18229
Scores
CVSS v3
7.5
EPSS
0.0015
EPSS Percentile
35.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-835
Status
published
Products (2)
envoyproxy/envoy
1.12.0
istio/istio
1.3.0 - 1.3.3
Published
Nov 11, 2019
Tracked Since
Feb 18, 2026