Detections
Analytics

SCA: security update for @xmldom/xmldom (GHSA-wh4c-j3r5-mjhp)

high Tenable Self-Hosted Container Security Plugin ID 439502

Description

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

 - xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer`
 module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9,
 xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator ]]> to be inserted into a
 CDATASection node. During serialization, XMLSerializer emitted the CDATA content verbatim without
 rejecting or safely splitting the terminator. As a result, data intended to remain text-only became active
 XML markup in the serialized output, enabling XML structure injection and downstream business-logic
 manipulation. This issue has been patched in xmldom version 0.6.0 and @xmldom/xmldom versions 0.8.12 and
 0.9.9. (CVE-2026-34601)

Solution

Update the @xmldom/xmldom library and its related packages to version 0.8.12 or later.

See Also

https://github.com/advisories/GHSA-wh4c-j3r5-mjhp

Plugin Details

Severity: High

ID: 439502

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 4/1/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 96.44

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-34601

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:H/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: 4/1/2026

Vulnerability Publication Date: 4/1/2026

Reference Information

CVE: CVE-2026-34601

cwe: CWE-91