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Vulnerability · Published Apr 12, 2024 · Assigned by GitHub_M

CVE-2024-28869Possible denial of service vulnerability with Content-length header in Traefik

High 7.5

In plain English

A high-severity security flaw in traefik from traefik. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.0%top 35.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Traefik is an HTTP reverse proxy and load balancer. In affected versions sending a GET request to any Traefik endpoint with the "Content-length" request header results in an indefinite hang with the default configuration. This vulnerability can be exploited by attackers to induce a denial of service. This vulnerability has been addressed in version 2.11.2 and 3.0.0-rc5. Users are advised to upgrade. For affected versions, this vulnerability can be mitigated by configuring the readTimeout option.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/traefik/traefik2.11.2GHSA-4vwx-54mw-vqfw
Gogithub.com/traefik/traefikno fix listedGO-2024-2722
Gogithub.com/traefik/traefik/v22.11.2GHSA-4vwx-54mw-vqfw
Gogithub.com/traefik/traefik/v22.11.2GO-2024-2722
Gogithub.com/traefik/traefik/v33.0.0-rc5GHSA-4vwx-54mw-vqfw
Gogithub.com/traefik/traefik/v33.0.0-rc5GO-2024-2722

Affected products (as reported)

VendorProductVersions
traefik traefik < 2.11.2>= 3.0.0-rc1, < 3.0.0-rc5

Weakness: CWE-755 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References