What’s Vulnerable › Vulnerabilities

CVE-2026-49445: Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-15 · updated 2026-07-17
• Weakness: CWE-732

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.

Affected products

• cilium: before 1.17.14; from 1.18.0 before 1.18.8; from 1.19.0 before 1.19.2 — fixed in 1.17.14, 1.18.8, 1.19.2

How to fix

Upgrade to a fixed version: cilium 1.17.14, 1.18.8, 1.19.2. Check the vendor advisory for mitigations.

References

• https://github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6
• https://github.com/cilium/cilium/pull/44512
• 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
• https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9

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