CVE-2026-41520

MEDIUM EPSS 0.2%
Published May 8, 20261mo ago · Modified Jun 17, 20261w ago
4.4 CVSS 3.1
Medium
Find Similar
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
4.4
Exploitability
0.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
0.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-312

Affected Products 3

VendorProductVersionRange
ciliumcilium* <1.17.15
ciliumcilium*≥1.18.0  –  <1.18.9
ciliumcilium*≥1.19.0  –  <1.19.3

References 4

  • github.com https://github.com/cilium/cilium/releases/tag/v1.17.15
    ProductRelease Notes
  • github.com https://github.com/cilium/cilium/releases/tag/v1.18.9
    ProductRelease Notes
  • github.com https://github.com/cilium/cilium/releases/tag/v1.19.3
    ProductRelease Notes
  • github.com https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj
    MitigationVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.