CVE-2026-33471: skip block quorum bypass via out-of-range BitSet indices + u16 truncation

skip block quorum bypass via out-of-range BitSet indices + u16 truncation

F-NIMIQ-SKIPBLOCK-QUORUMBYPASS-001

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Recorded evidence

9.6critical

CVE-2026-33471CVEnimiq/core-rs-albatross

skip block quorum bypass via out-of-range BitSet indices + u16 truncation

Fixed in: v1.3.0

patched

details

Finding IDs: F-NIMIQ-SKIPBLOCK-QUORUMBYPASS-001
CVE: CVE-2026-33471
GHSA: GHSA-6973-8887-87ff
Status: patched
Fixed in: v1.3.0
Recorded credit: finder: @1seal
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
CVE registry state: PUBLISHED
CVE state checked: 23 Sep 2026
Upstream title: skip block quorum bypass via out-of-range BitSet indices + u16 truncation
Upstream CWE: CWE-20, CWE-190, CWE-345, CWE-1284
Upstream publication: 22 Apr 2026
Upstream updated: 22 Apr 2026
Metadata fetched: 23 Sep 2026
Upstream @1seal credit: @1seal: finder (accepted)

F-NIMIQ-SKIPBLOCK-QUORUMBYPASS-001: Verification failures. A truncated signer bitset bypasses a quorum check. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-NIMIQ-SKIPBLOCK-QUORUMBYPASS-001

Security area (1seal assessment): Integrity. A truncated signer bitset bypasses a quorum check. Reviewed 24 Sep 2026.

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How this page groups evidence

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