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CVE-2026-56743 Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match

🗓️ 15 Jul 2026 19:15:30Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

Cilium 1.19.0–1.19.4 allows same-namespace ingress when ipBlock rules lack selectors, fixed in 1.19.5.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-56743
15 Jul 202619:15
attackerkb
CVE
CVE-2026-56743
15 Jul 202619:15
cve
EUVD
EUVD-2026-44774
15 Jul 202619:15
euvd
NVD
CVE-2026-56743
15 Jul 202620:17
nvd
Positive Technologies
PT-2026-60282
15 Jul 202600:00
ptsecurity
[
  {
    "vendor": "cilium",
    "product": "cilium",
    "versions": [
      {
        "version": ">= 1.19.0, < 1.19.5",
        "status": "affected"
      }
    ]
  }
]

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