Several Factors that are currently supporting the euro are:
Relative central bank expectations: Traders expect the Federal Reserve to cut rates faster than the ECB, that makes the euro to become relatively more attractive even when the Eurozone economy is not particularly strong.
Capital Flows into Europe: Global investors have been allocating more capital into European assets, helping support demand for Euros
Safe-haven Demand- With the current geopolitical tensions in the middle east, the euros have at times behaved more like a safe-haven currency, attracting inflows instead of heavy selling.
Broad-Basket Effect: Even if EUR/USD stalls or pullback, the euro strength against currencies like GBP, JPY, can prevent EXY from a sharp decline.