CVE-2023-47124

MEDIUM

Traefik < 2.10.5 - Resource Leak

Title source: rule

Description

Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.

Scores

CVSS v3 5.9
EPSS 0.0023
EPSS Percentile 45.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE
CWE-772
Status published

Affected Products (7)

traefik/traefik < 2.10.5
traefik/traefik
traefik/traefik
traefik/traefik
traefik/traefik
traefik/traefik < 2.10.6Go
traefik/traefik < 3.0.0-beta5Go

Timeline

Published Dec 04, 2023
Tracked Since Feb 18, 2026