CVE-2026-34066 — nimiq-blockchain provides persistent block storage for
CVE-2026-34066 — nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. Prior to version 1.3.0, `HistoryStore::put_historic_txns` uses an `assert!` to enforce invariants about `HistoricTransaction.block_number` (must be within the macro block being pushed and within the
What This Means For You
- If your environment is affected by CWE-20, CWE-617, CWE-754, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-34066 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Nimiq History Sync Panic via Malformed Historic Transactions — CVE-2026-34066
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-34066 | vulnerability | CVE-2026-34066 |
| CWE-20 | weakness | CWE-20 |
| CWE-617 | weakness | CWE-617 |
| CWE-754 | weakness | CWE-754 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 22, 2026 at 23:16 UTC |
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