CVE-2024-39321
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Traefik
PublishedJul 5, 2024
First seenJul 5, 2024
How to fix
Update
- traefik traefik2.11.6, 3.0.4 or later
- github.com/traefik/traefik/v22.11.6 or later
- github.com/traefik/traefik/v33.0.4, 3.1.0-rc3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| traefik traefik | v < 2.11.6, 3.0.0 ≤ v < 3.0.4, 3.1.0 | 2.11.6, 3.0.4 |
| github.com/traefik/traefik/v2Go | v < 2.11.6 | 2.11.6 |
| github.com/traefik/traefik/v3Go | 3.0.0-beta3 ≤ v < 3.0.4, 3.1.0-rc1 ≤ v < 3.1.0-rc3 | 3.0.4, 3.1.0-rc3 |
| github.com/traefik/traefikGo | No range specified | — |
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