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0xCERT Security Advisory 0xCERT-2026-0214
============================================================

Advisory-ID:  0xCERT-2026-0214
Severity:     Low
Published:    2026-01-08T21:30:34.000Z
Updated:      2026-10-08T22:48:24.963Z
Chains:       n/a
URL:          https://www.0xcert.com/advisory/0xCERT-2026-0214

Title: Elliptic Uses a Cryptographic Primitive with a Risky Implementation

Summary
- -------
Elliptic Uses a Cryptographic Primitive with a Risky Implementation. The ECDSA implementation of the Elliptic package generates incorrect signatures if an interim value of 'k' (as computed based on step 3.2 of RFC 6979 https://datatracker.

Details
- -------
Summary
The ECDSA implementation of the Elliptic package generates incorrect signatures if an interim value of 'k' (as computed based on step 3.2 of RFC 6979 https://datatracker.

Affected
- - elliptic (npm) <= 6.6.1 — no patched version listed

Severity
Low (CVSS 2.9), as rated by the upstream advisory.

Recommended actions
- - No fixed version is listed upstream; apply the mitigations in the source advisory and monitor for a release

Source & attribution
This 0xCERT advisory summarises GHSA-848j-6mx2-7j84 / CVE-2025-14505 from the GitHub Advisory Database: https://github.com/advisories/GHSA-848j-6mx2-7j84. Details may change; refer to the original source for the authoritative record.

References
- ----------
- - https://github.com/advisories/GHSA-848j-6mx2-7j84
- - CVE-2025-14505
- - https://nvd.nist.gov/vuln/detail/CVE-2025-14505
- - https://github.com/indutny/elliptic/issues/321
- - https://www.herodevs.com/vulnerability-directory/cve-2025-14505

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