EUVD-2026-42315

Immutabl: Hash-collision algorithmic complexity denial of service in Immutable.Map/Set...

Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity via the HashCollisionNode class in Immutable.Map and Immutable.Set. An attacker can cause excessive CPU consumption by supplying a large number of keys with identical 32-bit hashes, leading to degraded...