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.
History

Mon, 21 Apr 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 21 Apr 2025 15:45:00 +0000

Type Values Removed Values Added
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.
Title Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters
Weaknesses CWE-319
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-04-21T15:34:14.315Z

Updated: 2025-04-21T15:48:55.214Z

Reserved: 2025-04-10T12:51:12.281Z

Link: CVE-2025-32793

cve-icon Vulnrichment

Updated: 2025-04-21T15:48:43.348Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-04-21T16:15:54.753

Modified: 2025-04-23T14:08:13.383

Link: CVE-2025-32793

cve-icon Redhat

No data.