CVE-2026-41520

7.9 HIGH
Published: May 08, 2026 Modified: May 18, 2026
View on NVD

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been patched in versions 1.17.15, 1.18.9, and 1.19.3.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/cilium/cilium/releases/tag/v1.17.15
Source: security-advisories@github.com
Product Release Notes
https://github.com/cilium/cilium/releases/tag/v1.18.9
Source: security-advisories@github.com
Product Release Notes
https://github.com/cilium/cilium/releases/tag/v1.19.3
Source: security-advisories@github.com
Product Release Notes
https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj
Source: security-advisories@github.com
Mitigation Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.9 / 10.0
EPSS (Exploit Probability)
0.1%
0th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

cilium