Google: sys-kernel/cchost-kernel-6_12, sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_18: security update to 19862.0.0

high Tenable Cloud Security Plugin ID 469956

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: nat: use kfree_rcu to
release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the
data path doesn't use the original nf_hook_ops that are used to register the callbacks. However, in v5.14
I added the ability to dump the active netfilter hooks from userspace. This code will peek back into the
nf_hook_ops that are available at the tail of the pointer-array blob used by the datapath. The nat hooks
are special, because they are called indirectly from the central nat dispatcher hook. They are currently
invisible to the nfnl hook dump subsystem though. But once that changes the nat ops structures have to be
deferred too." Update nf_nat_register_fn() to deal with partial exposition of the hooks from error path
which can be also an issue for nfnetlink_hook. (CVE-2026-53000)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19862.0.0 or later.

Plugin Details

Severity: High

ID: 469956

Version: Revision 1.6

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.37

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-53000

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/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: 6/22/2026

Reference Information

CVE: CVE-2026-53000

Detections

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