Home/CVE/Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. T
CVE

CVE-2022-39271

Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. T

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.

HIGH · CVSS 7.5 EPSS 0.00408
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
CWE-755Improper Handling of Exceptional Conditions
▤

Affected Products & Versions

2
traefik< 2.8.8
traefikall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/traefik/traefik/v2 HIGH fixed in 2.8.8
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Oct 2022 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
oracle-cpuoracle-cpu-Oracle-Communications-Order-and-Service-Management-2270--CVE-2022-39271
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/traefik/traefik/releases/tag/v2.8.8Release NotesThird Party Advisory
https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5Release NotesThird Party Advisory
https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqrPatchThird Party Advisory
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