Reachable Assertion Affecting nimiq-keys package, versions <1.4.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-NIMIQKEYS-16874171
- published25 May 2026
- disclosed21 May 2026
- creditPiravlos
Introduced: 21 May 2026
NewCVE-2026-46542 (opens in a new tab)How to fix?
Upgrade nimiq-keys to version 1.4.0 or higher.
Overview
Affected versions of this package are vulnerable to Reachable Assertion via the delinearize function. An attacker can cause the process to panic and terminate by supplying a crafted public key that is not a valid point on the Ed25519 curve during a multisig operation. This is only exploitable if a user is convinced to include an attacker-supplied public key in a multisig setup within browser or desktop wallet applications.
Workaround
This vulnerability can be mitigated by only performing multisig operations with public keys received from trusted sources.