CVE-2026-49212
CVE-2026-49212 · Symfony UX: LiveComponentHydrator HMAC checksum lacks component and slot binding
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.9 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: php
Affected products and versions
ux
- Versions
- >= 3.0.0, < 3.1.0: Affected
- < 2.36.0: Affected
No fix published
symfony/ux-live-component Packagist
- Versions
- v2.10.0
- v2.11.0
- v2.11.1
- v2.11.2
- v2.12.0
- v2.13.0
- v2.13.1
- v2.13.2
- v2.13.3
- v2.14.0
- v2.14.1
- v2.14.2
- v2.15.0
- v2.16.0
- v2.17.0
- v2.18.0
- v2.18.1
- v2.19.0
- v2.19.2
- v2.20.0
- v2.21.0
- v2.22.0
- v2.22.1
- v2.23.0
- v2.24.0
- v2.25.0
- v2.25.1
- v2.25.2
- v2.26.0
- v2.26.1
- v2.27.0
- v2.28.0
- v2.28.1
- v2.28.2
- v2.29.0
- v2.29.1
- v2.29.2
- v2.30.0
- v2.31.0
- v2.32.0
- v2.33.0
- v2.34.0
- v2.35.0
- v2.8.0
- v2.8.1
- v2.9.0
- v2.9.1
- Affected ranges
- ECOSYSTEM: ≥ 2.8.0, < 2.36.0
Update to 2.36.0
symfony/ux-live-component Packagist
- Versions
- v3.0.0
- Affected ranges
- ECOSYSTEM: ≥ 3.0.0, < 3.1.0
Update to 3.1.0