CVE-2026-23966
Critical · 9.1CVSS
9.1
EPSS
0.2%
Published
Jan 22, 2026
CISA due date
—
The record
sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A private key recovery vulnerability exists in the SM2 decryption logic of sm-crypto prior to version 0.3.14. By interacting with the SM2 decryption interface multiple times, an attacker can fully recover the private key within approximately several hundred interactions. Version 0.3.14 patches the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | sm-crypto | 0 | 0.3.14 |
Related vulnerabilities
- GHSA-pgx9-497m-6c4v sm-crypto Affected by Private Key Recovery in SM2-PKE Same vulnerability
- CVE-2026-23967 sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms… Also affects sm-crypto
- CVE-2026-23965 sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms… Also affects sm-crypto
- GHSA-hpwg-xg7m-3p6m sm-crypto Affected by Signature Forgery in SM2-DSA Also affects sm-crypto
- GHSA-qv7w-v773-3xqm sm-crypto Affected by Signature Malleability in SM2-DSA Also affects sm-crypto
- CVE-2026-102682 Pipecat is an open-source Python framework for building real-time voice and multimodal… CWE-345
- CVE-2026-104850 MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and… CWE-345
- CVE-2026-102275 PyJWT is a Python implementation of JSON Web Token standards. CWE-345