HIGH 7.5 NVD
CVE-2026-48486
Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer
Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock() allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The vulnerability was introduced when the SMART_FEES hardfork (block ~1,029,000) enabled fee cash-back and burn accounting without overflow protection. This issue has been patched in version 3.9.9.
References
- https://github.com/signum-network/signum-node/releases/tag/v3.9.9
- https://github.com/signum-network/signum-node/security/advisories/GHSA-4vjp-2m22-r2q9
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-09-03 via NVD.
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