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CVE-2026-49212

Symfony UX: LiveComponentHydrator HMAC checksum lacks component and slot binding PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
symfony / uxaffected >= 3.0.0, < 3.1.0; affected < 2.36.0

CWE

CWE-345

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.