nimiq-primitives: Out-of-bounds panic in KeyNibbles::Add from oversized child suffix in a deserialized proof

Impact A malicious peer acting as a state-sync source can crash a syncing node with a crafted TrieChunk whose proof contains a TrieNodeChild whose suffix, when concatenated with the parent key via KeyNibbles::Add, exceeds the fixed 63-byte backing array. Add primitives/src/keynibbles.rs:332 / :34...

GHSA-46WQ-28CX-MHW4 nimiq-primitives: Panic in TrieProof::verify via child_index unwrap on equal-length keys

Impact A malicious peer acting as a state-sync source can crash a syncing node by sending a crafted TrieChunk whose proof contains two TrieProofNodes with identical keys. TrieProof::verify calls TrieProofNode::childindex primitives/src/trie/trieproofnode.rs:94, which unconditionally unwraps...

PT-2026-60695

Impact A malicious peer acting as a state-sync source can crash a syncing node by sending a crafted TrieChunk whose proof contains two TrieProofNodes with identical keys. TrieProof::verify calls TrieProofNode::child index primitives/src/trie/trie proof node.rs:94, which unconditionally unwraps...