Description
nimiq-account contains account primitives to be used in Nimiq's Rust implementation. Prior to version 1.3.0, `VestingContract::can_change_balance` returns `AccountError::InsufficientFunds` when `new_balance < min_cap`, but it constructs the error using `balance: self.balance - min_cap`. `Coin::sub` panics on underflow, so if an attacker can reach a state where `min_cap > balance`, the node crashes while trying to return an error. The `min_cap > balance` precondition is attacker-reachable because the vesting contract creation data (32-byte format) allows encoding `total_amount` without validating `total_amount <= transaction.value` (the real contract balance). After creating such a vesting contract, the attacker can broadcast an outgoing transaction to trigger the panic during mempool admission and block processing. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.
INFO
Published Date :
2026-04-22T19:43:04.453Z
Last Modified :
2026-04-23T16:25:19.186Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-34064 vulnerability.
| Vendors | Products |
|---|---|
| Nimiq |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34064.
