CVE-2022-39271CWE-400

Traefik HTTP/2 connections management could cause a denial of service

High · published October 11, 2022

CVSS v3.1
7.5
EPSS
1%
Percentile
71.3
In the wild
Unconfirmed
What it is

Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. There is a potential vulnerability in Traefik managing HTTP/2 connections. A closing HTTP/2 server connection could hang forever because of a subsequent fatal error. This failure mode could be exploited to cause a denial of service. There has been a patch released in versions 2.8.8 and 2.9.0-rc5. There are currently no known workarounds.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01351 · 71.3th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2022-10-11T00:00Z
EPSS history
Timeline
  • 11 OCT 00:00Z
    Traefik HTTP/2 connections management could cause a denial of service
    cvelistv5