1sealsemantic last-mile verification

Research / Finding

`UpdateValidator` transactions allows voting key change without proof-of-knowledge

F-NIMIQ-ROGUEKEY-001

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

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Recorded evidence

6.8medium
CVE-2026-34068CVEnimiq/core-rs-albatross

`UpdateValidator` transactions allows voting key change without proof-of-knowledge

Fixed in: v1.3.0

patched
details
Finding IDs
F-NIMIQ-ROGUEKEY-001
CVE
CVE-2026-34068
GHSA
GHSA-pf4j-pf3w-95f9
Status
patched
Fixed in
v1.3.0
Recorded credit
finder: @1seal
Note
GHSA-pf4j-pf3w-95f9; patched in v1.3.0 via PR #3654
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
CVE registry state
PUBLISHED
CVE state checked
Upstream title
`UpdateValidator` transactions allows voting key change without proof-of-knowledge
Upstream CWE
CWE-347
Upstream publication
Upstream updated
Metadata fetched
Upstream @1seal credit
@1seal: finder (accepted)

F-NIMIQ-ROGUEKEY-001: Verification failures. New voting keys are accepted without proof of knowledge. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-NIMIQ-ROGUEKEY-001

Security area (1seal assessment): Integrity. A voting key is accepted without proof of knowledge, undermining the integrity of aggregate-signature verification. Reviewed 24 Sep 2026.

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How this page groups evidence

This identifier groups recorded evidence; it is not an additional CVE, independent-vulnerability count or guarantee of vendor confirmation. Fixed code, released versions, attribution and independent discovery are distinct claims. Absent metadata means not recorded, not disproved. Counting rules.