Is CVE-2026-49208 actively exploited?

No active exploitation of CVE-2026-49208 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-49208 be exploited remotely?

Yes. CVE-2026-49208 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-49208?

CVE-2026-49208 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-49208

CWE-20Published: July 17, 2026· Updated: Jul 21, 2026

5.3

CVSS v3.1

EPSS:0.30%probability of exploitation in 30 daysPercentile:22.1th

Official Description

Symfony UX is a JavaScript ecosystem for Symfony. From 2.8.0 until 2.36.0 and 3.1.0, when a #[LiveProp] is typed as DateTimeInterface and no explicit format is configured, Symfony\UX\LiveComponent\LiveComponentHydrator::hydrateObjectValue() falls back to new $className($value), allowing client-supplied relative strings such as now, tomorrow, or +10 years to move a writable, format-less date prop past time-based business logic checks. This issue is fixed in versions 2.36.0 and 3.1.0.

NVD Source

Technical Analysis

CVE-2026-49208 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.