CVE-2024-39321

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

05/07/2024

Last modified:

25/11/2025

Description

Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch for this issue. No known workarounds are available.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:traefik:traefik::::::::		2.11.6 (excluding)
cpe:2.3:a:traefik:traefik::::::::	3.0.0 (including)	3.0.4 (excluding)
cpe:2.3:a:traefik:traefik:3.1.0:-::::::
cpe:2.3:a:traefik:traefik:3.1.0:rc1::::::
cpe:2.3:a:traefik:traefik:3.1.0:rc2::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-39321

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools