Detections
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SCA: security update for symfony/ux-live-component (GHSA-34w5-c283-j9fg)

medium Tenable Self-Hosted Container Security Plugin ID 443647

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 2.8.0 until 2.36.0 and 3.1.0, the HMAC computed by
 Symfony\UX\LiveComponent\LiveComponentHydrator covered only sorted prop key/value pairs and did not
 include the component name, the slot identifier (props vs propsFromParent), or request context, allowing a
 signed blob minted for one component or slot to be replayed in another and set a read-only prop on a
 target component. This issue is fixed in versions 2.36.0 and 3.1.0. (CVE-2026-49212)

Solution

Update the symfony/ux-live-component library and its related packages to version 2.36.0 or later.

See Also

https://github.com/advisories/GHSA-34w5-c283-j9fg

Plugin Details

Severity: Medium

ID: 443647

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/20/2026

Updated: 7/21/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: Low

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-2026-49212

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

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

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-2026-49212

cwe: CWE-345