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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Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-gj49-89wh-h4gj Cillium exposes sensitive information included in the cilium-bugtool debug archive
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 13 May 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 May 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Cilium
Cilium cilium
Vendors & Products Cilium
Cilium cilium

Fri, 08 May 2026 22:30:00 +0000

Type Values Removed Values Added
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.
Title Cillium exposes sensitive information included in the cilium-bugtool debug archive
Weaknesses CWE-200
CWE-312
References
Metrics cvssV3_1

{'score': 7.9, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-13T19:33:28.377Z

Reserved: 2026-04-20T18:18:50.682Z

Link: CVE-2026-41520

cve-icon Vulnrichment

Updated: 2026-05-13T19:33:22.798Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-08T23:16:35.597

Modified: 2026-05-13T16:49:52.277

Link: CVE-2026-41520

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T23:30:15Z

Weaknesses