CVE-2026-32605

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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-26)

CWEs

CWE-125, CWE-193

Published

2026-04-13

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• nimiq:nimiq_proof-of-stake

References

• https://github.com/nimiq/core-rs-albatross/commit/9199364b60c7acae4219800d194bbe07d2997b8c
• https://github.com/nimiq/core-rs-albatross/pull/3661
• https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0
• https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-g99c-h7j7-rfhv

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