CVE-2022-39271
Traefik HTTP/2 connections management could cause a denial of service
Description
### Impact 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. ### Patches Traefik v2.8.x: https://github.com/traefik/traefik/releases/tag/v2.8.8 Traefik v2.9.x: https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5 ### Workarounds No workaround. ### For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).
How to fix CVE-2022-39271
To remediate CVE-2022-39271, upgrade the affected package to a fixed version below.
- —upgrade to 2.8.8 or later
Is CVE-2022-39271 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.8.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |