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SCA: security update for github.com/cilium/cilium (GHSA-5r23-prx4-mqg3)

medium Tenable Cloud Security Plugin ID 437895

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.18.0
 through 1.18.5 will incorrectly permit traffic from Pods on other nodes when Native Routing, WireGuard and
 Node Encryption are enabled. This issue has been fixed in version 1.18.6. (CVE-2026-26963)

See Also

https://github.com/advisories/GHSA-5r23-prx4-mqg3

Plugin Details

Severity: Medium

ID: 437895

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 2/20/2026

Updated: 6/1/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 3.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-26963

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/19/2026

Vulnerability Publication Date: 2/19/2026

Reference Information

CVE: CVE-2026-26963

cwe: CWE-863