Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.0.140

high Tenable Self-Hosted Container Security Plugin ID 470027

Description

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

- In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: increase the
connection clean up limit to 64 After the optimization to only perform one GC per jiffy, a new problem was
introduced. If more than 8 new connections are tracked per jiffy the list won't be cleaned up fast enough
possibly reaching the limit wrongly. In order to prevent this issue, only skip the GC if it was already
triggered during the same jiffy and the increment is lower than the clean up limit. In addition, increase
the clean up limit to 64 connections to avoid triggering GC too often and do more effective GCs. This has
been tested using a HTTP server and several performance tools while having nft_connlimit/xt_connlimit or
OVS limit configured. Output of slowhttptest + OVS limit at 52000 connections: slow HTTP test status on
340th second: initializing: 0 pending: 432 connected: 51998 error: 0 closed: 0 service available: YES
(CVE-2026-45860)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.0.140 or later.

Plugin Details

Severity: High

ID: 470027

Version: Revision 1.3

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.7

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-45860

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-45860

Detections

Analytics