Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
🔵 Symfony UX Live Component – Denial of Service via Unbounded Batch Actions (#CVE-2026-49209) – Low -DC-Jun2026-491 https://dailycve.com/symfony-ux-live-component-denial-of-service-via-unbounded-batch-actions-cve-2026-49209-low-dc-jun2026-491/
Post summary
The post announces a low‑severity CVE describing a denial‑of‑service flaw in Symfony UX Live Components, with no PoC, exploit, or patch information provided.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | symfony | ux | - | - | - |
| App | symfony | ux | 3.0.0 | - | - |