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CVE-2026-41520

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CVE-2026-41520

Published: May 8, 2026

Modified: May 13, 2026

PUBLISHED

CVSS v3.1

7.9

HIGH

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.

VendorProductVersions

cilium

cilium

affected
< 1.17.15
affected
>= 1.18.0, < 1.18.9
affected
>= 1.19.0, < 1.19.3

Weaknesses (CWE)

CWE-200
CWE-312

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

References

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