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Nimiq

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high advisory

Nimiq Blockchain Transaction Replay Vulnerability

An off-by-one error in the Nimiq blockchain validity store allows for double-spending of transactions by bypassing replay protection within a 10-minute window.

nimiq-blockchain
medium advisory

Nimiq Primitives Trie Chunk Processing Denial-of-Service (CVE-2026-46545)

A remote denial-of-service vulnerability (CVE-2026-46545) exists in Nimiq primitives where an unauthenticated peer can send a malicious chunk with an empty key, leading to a panic when `put_raw` attempts to store a value at the root node, causing the node process to abort.

nimiq-primitives denial-of-service rust
2r 1t
medium advisory

Nimiq nimiq-keys Ed25519 Signature Length Vulnerability (CVE-2026-40092)

A malicious network peer can crash a Nimiq full node by publishing a crafted Kademlia DHT record due to unchecked Ed25519 signature length in `TaggedPublicKey::verify` (CVE-2026-40092).

nimiq-keys dos nimiq signature-validation
2r 1t
medium advisory

Nimiq Node Panic due to Invalid BLS Key

An unauthenticated peer can crash a Nimiq node by sending a malformed election macro block containing an invalid BLS voting key, leading to a denial of service.

nimiq-primitives denial-of-service nimiq bls
2r 3t
medium advisory

Nimiq Block Skip Block Quorum Bypass Vulnerability

A vulnerability exists in Nimiq Block's SkipBlockProof verification process, allowing attackers to bypass quorum checks by manipulating MultiSignature signers with out-of-range indices, potentially compromising blockchain integrity, and affecting rust/nimiq-block versions 0.2.0 and earlier.

nimiq-block blockchain quorum bypass nimiq rust
2r 1t