CVE-2026-49445
Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
- State
- Published
- Severity
- 9.2 Critical
- Published
- Jul 15, 2026
- Updated
- Jul 16, 2026
- Reserved
- May 30, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.2 Critical | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H | GitHub_M |
Weaknesses
- CWE-732 Incorrect Permission Assignment for Critical Resource
Affected Products
| Product | Versions |
|---|---|
ciliumcilium |
|
References
- 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
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