Detections
Analytics

SCA: security update for fast-xml-parser (GHSA-jmr7-xgp7-cmfj)

high Tenable Self-Hosted Container Security Plugin ID 437759

Description

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

 - fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without
 C/C++ based libraries and no callback. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do
 an unlimited amount of entity expansion. With a very small XML input, it’s possible to make the parser
 spend seconds or even minutes processing a single request, effectively freezing the application. Version
 5.3.6 fixes the issue. As a workaround, avoid using DOCTYPE parsing by `processEntities: false` option.
 (CVE-2026-26278)

See Also

https://github.com/advisories/GHSA-jmr7-xgp7-cmfj

Plugin Details

Severity: High

ID: 437759

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 2/18/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-26278

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/17/2026

Vulnerability Publication Date: 2/17/2026

Reference Information

CVE: CVE-2026-26278

cwe: CWE-776