CVE-2026-56743
2 advisories.
Go/github.com/cilium/cilium CVE-2026-56743: medium 5.4, EPSS 0.25%
Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match
Action: Upgrade github.com/cilium/cilium to 1.19.5 or later.
go get github.com/cilium/cilium@v1.19.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.19.0 | 1.19.5 | - |
Fixed versions
| 1.19.5 |
Sources
- osv: GHSA-fm8w-2m5w-9j7r
- https://github.com/cilium/cilium/security/advisories/GHSA-fm8w-2m5w-9j7r
- https://nvd.nist.gov/vuln/detail/CVE-2026-56743
- https://github.com/cilium/cilium/pull/46305
- https://github.com/cilium/cilium/pull/46456
- https://github.com/cilium/cilium/commit/1c84ae3b58a7cd54f7ee355e6c524c82f620eae8
- https://github.com/cilium/cilium/commit/bacea640404c0805c23515353dc1681c5bf35171
- https://github.com/cilium/cilium
- https://github.com/cilium/cilium/releases/tag/v1.19.5
CVE-2026-56743 · published · modified · JSON
Go/github.com/cilium/cilium CVE-2026-56743: unknown, EPSS 0.25%
Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match in github.com/cilium/cilium
Action: Upgrade github.com/cilium/cilium to 1.19.5 or later.
go get github.com/cilium/cilium@v1.19.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.19.0 | 1.19.5 | - |
Fixed versions
| 1.19.5 |
Sources
- osv: GO-2026-6367
- https://github.com/cilium/cilium/security/advisories/GHSA-fm8w-2m5w-9j7r
- https://nvd.nist.gov/vuln/detail/CVE-2026-56743
- https://github.com/cilium/cilium/commit/1c84ae3b58a7cd54f7ee355e6c524c82f620eae8
- https://github.com/cilium/cilium/commit/bacea640404c0805c23515353dc1681c5bf35171
- https://github.com/cilium/cilium/pull/46305
- https://github.com/cilium/cilium/pull/46456
- https://github.com/cilium/cilium/releases/tag/v1.19.5
CVE-2026-56743 · published · modified · JSON