High severity7.5NVD Advisory· Published Oct 11, 2022· Updated Jun 17, 2026
CVE-2022-39271
CVE-2022-39271
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/traefik/traefik/v2Go | < 2.8.8 | 2.8.8 |
github.com/traefik/traefik/v2Go | >= 2.9.0-rc1, < 2.9.0-rc5 | 2.9.0-rc5 |
Affected products
7cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*range: <2.8.8
- cpe:2.3:a:traefik:traefik:2.9.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc4:*:*:*:*:*:*
- (no CPE)range: < 2.8.8
Patches
Vulnerability mechanics
References
5- github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqrnvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-c6hx-pjc3-7fqrghsaADVISORY
- github.com/traefik/traefik/releases/tag/v2.8.8nvdRelease NotesThird Party AdvisoryWEB
- github.com/traefik/traefik/releases/tag/v2.9.0-rc5nvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2022-39271ghsaADVISORY
News mentions
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