Google: dev-libs/libxml2: security update to 18867.624.8

high Tenable Cloud Security Plugin ID 474914

Description

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

- In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.
(CVE-2026-86140)

Solution

Update the dev-libs/libxml2 library and its related packages to version 18867.624.8 or later.

Plugin Details

Severity: High

ID: 474914

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.35

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-2026-86140

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/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: 9/5/2026

Reference Information

CVE: CVE-2026-86140

Detections

Analytics