Nimiq: Remote crash via off-by-one signer bounds check in proposal buffer
Summary
| CVE | CVE-2026-32605 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-13 20:16:33 UTC |
| Updated | 2026-04-17 15:38:09 UTC |
| Description | nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, an untrusted peer could crash a validator by publishing a signed tendermint proposal message where signer == validators.num_validators(). ProposalSender::send uses > instead of >= for the signer bounds check, so the equality case passes and reaches validators.get_validator_by_slot_band(signer), which panics with an out-of-bounds index before any signature verification runs. This issue has been fixed in version 1.3.0. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.000550000 probability, percentile 0.171150000 (date 2026-04-21)
Problem Types: CWE-125 | CWE-193 | CWE-125 CWE-125: Out-of-bounds Read | CWE-193 CWE-193: Off-by-one Error
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | DECLARED | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Nimiq | Core-rs-albatross | affected < 1.3.0 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/nimiq/core-rs-albatross/pull/3661 | [email protected] | github.com | |
| github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 | [email protected] | github.com | |
| github.com/nimiq/core-rs-albatross/security/advisories/GHSA-g99c-h7j7-rfhv | [email protected] | github.com | |
| github.com/nimiq/core-rs-albatross/commit/9199364b60c7acae4219800d194bbe... | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.