Detections
Analytics

SCA: security update for github.com/cilium/cilium, github.com/cilium/ciliumCilium (GHSA-w7c2-w76w-5hmj)

high Tenable Self-Hosted Container Security Plugin ID 448339

Description

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

 - Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5,
 Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes
 to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant authorization
 mechanism. Gateway API functionality is disabled by default. This issue is fixed in versions 1.17.17,
 1.18.11, and 1.19.5. (CVE-2026-56742)

Solution

Update the github.com/cilium/cilium library and its related packages to version 1.17.17 or later.

See Also

https://github.com/advisories/GHSA-w7c2-w76w-5hmj

Plugin Details

Severity: High

ID: 448339

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 9/25/2026

Updated: 9/25/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.06

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.4

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-56742

CVSS v3

Risk Factor: High

Base Score: 8.9

Temporal Score: 7.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2026

Vulnerability Publication Date: 7/15/2026

Reference Information

CVE: CVE-2026-56742

cwe: CWE-862