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CVE-2026-46543

nimiq-blockchain: Genesis batch set request

Published: Jun 9, 2026Updated: Jul 23, 2026 Sources: CVE List NVDCWE-617
5.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 78.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-617

Affected Products

nimiq
oss-projectaka network-libp2p, nimiq proof-of-stake
core-rs-albatrossMixed
OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/nimiq/core-rs-albatross/pull/3745
github.com
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0
github.com
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vghx-352f-93jm
github.com

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