Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H
Affected products
cilium · ciliumReferences
https://github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6https://github.com/cilium/cilium/pull/44512https://github.com/cilium/cilium/releases/tag/v1.17.14https://github.com/cilium/cilium/releases/tag/v1.18.8https://github.com/cilium/cilium/releases/tag/v1.19.2https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9