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CVE-2024-28869

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

Published: Apr 12, 2024Updated: Nov 26, 2025 Sources: CVE List NVD GHSA BDUCWE-755
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.0%
Top 40.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-755

Affected Products

traefiktraefik
On-prem
Networking Infrastructure / load-balancer-proxy
TraefikContainous
On-prem
Networking Infrastructure / load-balancer-proxy
github.com/traefik/traefik/v3GoOSS Libraries
github.com/traefik/traefik/v2GoOSS Libraries
github.com/traefik/traefikGoOSS Libraries
traefikoss-projectNetworking Infrastructureaka traefik enterprise
containousoss-projectFRNetworking Infrastructureaka containous
gopackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://github.com/traefik/traefik/security/advisories/GHSA-4vwx-54mw-vqfw
github.com
https://github.com/traefik/traefik/commit/240b83b77351dfd8cadb91c305b84e9d22e0f9c6
github.com
https://doc.traefik.io/traefik/routing/entrypoints/#respondingtimeouts
doc.traefik.io
and 6 more references View all →

Timeline

Published
Apr 12, 2024
Last Updated
Nov 26, 2025

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