UpHeron
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Servers and applications

CVE-2024-39321

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
High 7.5
Published
5 Jul 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.11.6, 3.0.4
Sources
NVD

Affected software

SoftwareAffected versions
TraefikServers and applications · cpe:a:traefik:traefik
  • Every version before 2.11.6
  • From 3.0.0 before 3.0.4
  • Version 3.1.0-rc1
  • Version 3.1.0-rc2
  • Version 3.1.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-39321
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-39321