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CVE PROGRAM SOURCE RECORD4.0 Medium

CVE-2025-32793

Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

cilium cilium

  • >= v1.13.0, < v1.15.16affected
  • >= v1.16.0, < v1.16.9affected
  • >= v1.17.0, < v1.17.3affected

References