CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2024-39321
High (7.5) in traefik traefik. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in github.com/traefik/traefik/v2 2.11.6.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-11-01)
- CWE
- CWE-639
- Published
- Modified
- Record from
- the NVD, synced
Affected
- traefik:traefik
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-gxrv-wf35-62w9 | Go | github.com/traefik/traefik/v2 | <2.11.6 | 2.11.6 |
| GHSA-gxrv-wf35-62w9 | Go | github.com/traefik/traefik/v3 | >=3.0.0-beta3 <3.0.4 | 3.0.4 |
| GHSA-gxrv-wf35-62w9 | Go | github.com/traefik/traefik/v3 | >=3.1.0-rc1 <3.1.0-rc3 | 3.1.0-rc3 |
| GO-2024-2973 | Go | github.com/traefik/traefik | all versions | no fix published |
| GO-2024-2973 | Go | github.com/traefik/traefik/v2 | <2.11.6 | 2.11.6 |
| GO-2024-2973 | Go | github.com/traefik/traefik/v3 | >=3.0.0-beta3 <3.0.4 >=3.1.0-rc1 <3.1.0-rc3 | 3.0.4, 3.1.0-rc3 |