Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sent unencrypted and IPsec-eligible traffic between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.15.2, 1.14.8, and 1.13.13. There is no known workaround for this issue.
https://github.com/cilium/cilium/security/advisories/GHSA-j89h-qrvr-xc36
https://github.com/cilium/cilium/releases/tag/v1.15.2
https://github.com/cilium/cilium/releases/tag/v1.14.8
Published: 2024-03-18
Updated: 2025-01-09
Named Vulnerability: GO-2024-2656Named Vulnerability: GHSA-j89h-qrvr-xc36
Base Score: 4.6
Vector: CVSS2#AV:A/AC:H/Au:N/C:C/I:N/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Severity: Medium
EPSS: 0.00271