Security Advisory

CVE-2026-49212

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-17 16:03:27

Last updated 2026-07-17 17:48:49

Assigner GitHub_M

CVSS score 6.9

State PUBLISHED

Description

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.

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