Vulnerability in Cilium
CVE-2026-49445
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.2 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Cilium — versions < 1.17.14, >= 1.18.0, < 1.18.8, >= 1.19.0, < 1.19.2
Weakness classification (CWE)
References
- github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9 (Patch, Vendor Advisory)
- github.com/cilium/cilium/pull/44512 (Patch)
- github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6 (Patch)
- github.com/cilium/cilium/releases/tag/v1.17.14 (Release Notes)
- github.com/cilium/cilium/releases/tag/v1.18.8 (Release Notes)
- github.com/cilium/cilium/releases/tag/v1.19.2 (Release Notes)
Frequently asked questions
- What is CVE-2026-49445?
- CVE-2026-49445 is a critical-severity vulnerability in Cilium, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.2/10. Published 2026-07-15.
- How severe is CVE-2026-49445?
- Critical severity. CVSS v3 base score is 9.2 out of 10.