Vulnerability · Published Oct 11, 2022 · Assigned by GitHub_M
CVE-2022-39271Traefik HTTP/2 connections management could cause a denial of service
High 7.5
In plain English
A high-severity uncontrolled resource consumption in traefik from traefik. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/traefik/traefik/v2 | 2.8.8 | GHSA-c6hx-pjc3-7fqr |
| Go | github.com/traefik/traefik/v2 | 2.9.0-rc5 | GHSA-c6hx-pjc3-7fqr |
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H