BIT-cilium-operator-2026-56743

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/cilium-operator/BIT-cilium-operator-2026-56743.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-cilium-operator-2026-56743
Aliases
Published
2026-07-19T23:37:52.909Z
Modified
2026-07-20T08:41:21.459638942Z
Summary
Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match
Details

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.

Database specific 
{
    "severity": "Medium",
    "cpes": [
        "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*"
    ]
}
References

Affected packages

Bitnami / cilium-operator

Package

Name
cilium-operator
Purl
pkg:bitnami/cilium-operator

Severity

  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
1.19.0
Fixed
1.19.5

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/cilium-operator/BIT-cilium-operator-2026-56743.json"