CVE-2026-56743 - CERT CVE
ID CVE-2026-56743
Sažetak Cilium is a networking, observability, and security solution. From 1.19.0 to 1.19.4, standard Kubernetes NetworkPolicy specifications using CIDR-based ipBlock rules without pod or namespace selectors erroneously generate a wildcard namespace allow rule when Cilium is configured with a custom clusterName rather than the default any value. The parser incorrectly instantiates a pod selector on selectorless peer definitions, allowing traffic from other workloads in the same namespace as the subject of the policy. This issue is fixed in version 1.19.5.
Reference
CVSS
Base: 5.4
Impact: 2.7
Exploitability:2.3
Pristup
VektorSloženostAutentikacija
ADJACENT_NETWORK LOW LOW
Impact
PovjerljivostCjelovitostDostupnost
LOW LOW NONE
CVSS vektor CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Zadnje važnije ažuriranje 17-07-2026 - 17:29
Objavljeno 15-07-2026 - 20:17