PT-2026-3894 · Sm-Crypto · Sm-Crypto

Xlabaiteam · Publicado 2026-01-21 · Atualizado 2026-02-25 · CVE-2026-23967

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions sm-crypto versions prior to 0.3.14

Description The sm-crypto library, providing JavaScript implementations of Chinese cryptographic algorithms SM2, SM3, and SM4, contains a signature malleability issue in its SM2 signature verification logic. An attacker can generate a new valid signature for a previously signed message using an existing signature.

Recommendations Update to version 0.3.14 or later.

Exploit

Correção

Improper Verification of Cryptographic Signature

Enumeração de Fraquezas

CWE-347

Identificadores relacionados

CVE-2026-23967

GHSA-QV7W-V773-3XQM

Produtos afetados

Sm-Crypto

Referências · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23967.json · Exploit
• https://github.com/JuneAndGreen/sm-crypto/security/advisories/GHSA-qv7w-v773-3xqm · Aviso do Fabricante
• https://github.com/JuneAndGreen/sm-crypto · Nota
• https://twitter.com/CVEnew/status/2014182489359892606 · Publicação no Twitter
• https://t.me/CVEtracker/42721 · Publicação no Telegram
• https://twitter.com/_cvereports/status/2014187189936984509 · Publicação no Twitter
• https://osv.dev/vulnerability/CVE-2026-23967 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-23967 · Nota de Segurança
• https://osv.dev/vulnerability/GHSA-qv7w-v773-3xqm · Aviso do Fabricante
• https://twitter.com/VulmonFeeds/status/2014240938676064736 · Publicação no Twitter
• https://t.me/cveNotify/153164 · Publicação no Telegram
• https://twitter.com/cracbot/status/2016103979357524334 · Publicação no Twitter