Detections
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SCA: security update for symfony/ux-live-component (GHSA-mm82-c99c-h2cf)

medium Tenable Cloud Security Plugin ID 443741

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 2.5.0 until 2.36.0 and 3.1.0,
 Symfony\UX\LiveComponent\Controller\BatchActionController::__invoke() iterates over the client-supplied
 actions array and issues a full HttpKernel sub-request for each entry; because the array size is never
 bounded, an authenticated client can submit a single _batch request containing thousands of actions and
 exhaust CPU, memory, and database connections on the application server. This issue is fixed in versions
 2.36.0 and 3.1.0. (CVE-2026-49209)

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-mm82-c99c-h2cf

Plugin Details

Severity: Medium

ID: 443741

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: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-49209

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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-2026-49209

cwe: CWE-770