critical9.2
CVE-2026-49445
Cilium vulnerable to sensitive information disclosure and cluster disruption via local Envoy admin socket access
Impact
Cilium is a networking, observability, and security solution. Prior to 1.17.14, 1.18.8, and 1.19.2, when Cilium L7 functionality is enabled, the embedded or standalone Envoy instance creates a world-accessible admin.sock on cluster nodes, allowing a local attacker to access Envoy admin endpoints, expose TLS secrets, disrupt cluster traffic, or terminate Envoy. This issue is fixed in versions 1.17.14, 1.18.8, and 1.19.2.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/cilium/cilium | >= 1.19.0, < 1.19.2 | 1.19.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cilium | Cilium | before 1.17.14 from 1.18.0 before 1.18.8 from 1.19.0 before 1.19.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-3fcv-jvfp-m4q9
- https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9
- https://github.com/cilium/cilium/pull/44512
- https://github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6
- https://github.com/cilium/cilium/releases/tag/v1.17.14
- https://github.com/cilium/cilium/releases/tag/v1.18.8
- https://github.com/cilium/cilium/releases/tag/v1.19.2