Detections
Analytics

SCA: security update for loofah (GHSA-8whx-365g-h9vv)

low Tenable Cloud Security Plugin ID 445904

Description

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

 - Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on
 top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.allowed_uri? does not reject javascript:
 URIs whose scheme is split or prefixed with the HTML5 named whitespace character references 	 or
 
. CGI.unescapeHTML leaves those references intact, so allowed_uri? reports the URL safe even
 though a browser decodes and strips the tab or line feed and executes the resulting javascript: URL. This
 issue affects only callers that pass HTML-encoded strings directly to allowed_uri?; Loofah's default
 sanitize() path is not affected. This issue is fixed in version 2.25.2. (CVE-2026-73491)

Solution

Update the loofah library and its related packages to version 2.25.2 or later.

See Also

https://github.com/advisories/GHSA-8whx-365g-h9vv

Plugin Details

Severity: Low

ID: 445904

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/13/2026

Updated: 8/13/2026

Risk Information

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-73491

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.3

Threat Score: 0.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/21/2026

Vulnerability Publication Date: 7/21/2026

Reference Information

CVE: CVE-2026-73491

cwe: CWE-184