Back to overview

CVE-2026-49212

MEDIUM
6.9
CVSS 4.0
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.

Metadata

CVE ID
CVE-2026-49212
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-28 03:42 UTC
Published
2026-07-17 16:03 UTC
Last updated
2026-07-17 16:03 UTC
Primary CWE
CWE-345
CWE-345: Insufficient Verification of Data Authenticity
Vendor / Product
symfony / ux
Sources
cve.org  ·  NVD

Severity & Metrics

6.9 MEDIUM CVSS 4.0
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
Affected products (1)
VendorProductPlatformVersions
symfony ux — >= 3.0.0, < 3.1.0, < 2.36.0
Weakness (CWE)
CWESourceDescription
CWE-345 cna CWE-345: Insufficient Verification of Data Authenticity
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.9 MEDIUM 4.0 cna 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
References (4)
Back to overview