CVE-2026-46543: medium-severity vulnerability in nimiq core-rs-albatross
nimiq-blockchain: Genesis batch set request
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.5.0, a remote peer can crash any full node by sending a RequestBatchSet message containing the genesis block's hash. The handler calls get_epoch_chunks which iterates backwards through macro blocks using Policy::macro_block_before. When it reaches the genesis block number, macro_block_before panics with "No macro blocks before genesis block". This issue has been patched in version 1.5.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
nimiq · core-rs-albatrossRelated CVEs — nimiq core-rs-albatross
In the same product, most dangerous first.
CVE-2025-47270HIGHnimiq-network-libp2p Uncontrolled Resource Consumption vulnerabilityEPSS 0.7%CVE-2026-40092HIGHnimiq-keys: Unchecked Ed25519 signature length in TaggedPublicKey::verify causes remote node panic via DHTEPSS 0.6%CVE-2026-46369HIGHNimiq: Validity store off by one errorEPSS 0.5%CVE-2026-35468MEDIUMnimiq/core-rs-albatross: Panic in history index request handlers when a full node runs without the history indexEPSS 0.5%CVE-2026-33184HIGHnimiq/core-rs-albatross: Discovery handshake limit could underflow and later provoke a deterministic overflow panicEPSS 0.5%CVE-2026-32605HIGHNimiq: Remote crash via off-by-one signer bounds check in proposal bufferEPSS 0.5%