CVE-2026-40093

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In 1.3.0 and earlier, block timestamp validation enforces that timestamp = parent.timestamp for non-skip blocks and timestamp == parent.timestamp + MINPRODUCERTIMEOUT for skip blocks, but there is no visible upper...

EUVD-2026-21146

nimiq-blockchain is missing a wall-clock upper bound on block timestamps...

GHSA-49XC-52MP-CC9J nimiq-blockchain is missing a wall-clock upper bound on block timestamps

Impact Block timestamp validation enforces that timestamp = parent.timestamp for non-skip blocks and timestamp == parent.timestamp + MINPRODUCERTIMEOUT for skip blocks, but there is no visible upper bound check against the wall clock. A malicious block-producing validator can set block timestamps...

nimiq-blockchain is missing a wall-clock upper bound on block timestamps

Impact Block timestamp validation enforces that timestamp = parent.timestamp for non-skip blocks and timestamp == parent.timestamp + MINPRODUCERTIMEOUT for skip blocks, but there is no visible upper bound check against the wall clock. A malicious block-producing validator can set block timestamps...

CVE-2026-40093

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In 1.3.0 and earlier, block timestamp validation enforces that timestamp = parent.timestamp for non-skip blocks and timestamp == parent.timestamp + MINPRODUCERTIMEOUT for skip blocks, but there is no visible upper...

CVE-2026-40093 nimiq-blockchain is missing a wall-clock upper bound on block timestamps

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In 1.3.0 and earlier, block timestamp validation enforces that timestamp = parent.timestamp for non-skip blocks and timestamp == parent.timestamp + MINPRODUCERTIMEOUT for skip blocks, but there is no visible upper...

CVE-2026-40093

The CVE describes a wall-clock upper bound omission in Nimiq’s block timestamp validation for the nimiq-blockchain Rust implementation (1.3.0 and earlier). Specifically, non-skip blocks enforce timestamp >= parent.timestamp and skip blocks enforce timestamp == parent.timestamp + MIN_PRODUCER_T...

PT-2026-31733

Name of the Vulnerable Software and Affected Versions nimiq-blockchain versions 1.3.0 and earlier Description nimiq-blockchain, used for persistent block storage in Nimiq's Rust implementation, has an issue where block timestamp validation lacks an upper bound check against the wall clock in...