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    CVE-2022-39271

    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.

    Published:Oct 11, 2022
    Last Modified:Apr 23, 2025
    EPS:Oct 11, 2022
    EPSS Score:0.00103
    CVSS Score:7.5

    Affected Products

    Vendor
    Traefik
    Product
    Traefik

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-88012 (CVSS 5.3) — Traefik is an open source HTTP reverse proxy and load balancer. From 2.8.2 until 2.11.56 and 3.7.12, HTTP/3 en…
    CVE-2026-88011 (CVSS 5.3) — Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12,…
    CVE-2026-88009 (CVSS 8.8) — Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts …
    CVE-2026-88008 (CVSS 7) — Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik…
    CVE-2026-88007 (CVSS 9.1) — Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.0 until 2.11.57 and 3.7.13, the HTTP…
    CVE-2026-88004 (CVSS 7) — Traefik is an open source HTTP reverse proxy and load balancer. From 3.2.0 until 3.7.13, Traefik entrypoint de…
    CVE-2026-88879 (CVSS 5.3) — Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through…
    CVE-2026-88878 (CVSS 6.9) — Traefik is an HTTP reverse proxy and load balancer. In versions >= v2.8.2 through <= v2.11.55 and >= v3.0.0 th…
    CVE-2026-88877 (CVSS 9.3) — Traefik is a HTTP reverse proxy and load balancer. In versions >= v3.7.0 and <= v3.7.11, the Kubernetes ingres…
    CVE-2026-85596 (CVSS 8.2) — Traefik versions >= v3.7.0 and <= v3.7.10 contain an authentication bypass in the Kubernetes Ingress NGINX pro…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High