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SCA: security update for symfony/ux-icons (GHSA-6v8j-33hc-mv84)

medium Tenable Cloud Security Plugin ID 443721

Description

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

 - Symfony UX is a JavaScript ecosystem for Symfony. From 2.17.0 before 2.36.1 and from 3.0.0 before 3.2.0,
 the ux_icon() Twig function is marked is_safe=['html'] and Icon::toHtml() inlines SVG source verbatim,
 allowing unsanitized local SVG files or Iconify on-demand JSON body responses containing nested script
 elements, on* event handlers, or dangerous URL schemes to execute cross-site scripting. This issue is
 fixed in versions 2.36.1 and 3.2.0. (CVE-2026-55877)

Solution

Update the symfony/ux-icons library and its related packages to version 2.36.1 or later.

See Also

https://github.com/advisories/GHSA-6v8j-33hc-mv84

Plugin Details

Severity: Medium

ID: 443721

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/20/2026

Updated: 7/9/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.14

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-55877

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-55877

cwe: CWE-79