CVE-2026-55174

Publié : 30 septembre 2026

Modifié : 30 septembre 2026

Score CVSS

5.9

MEDIUM

Description détaillée

UltrafastSecp256k1 is a high-performance, multi-backend secp256k1 engine with reproducible audit evidence, compatibility shims, and profile-based review scopes. Prior to version 4.2.0, UltrafastSecp256k1's ECDSA adaptor pre-signature verification accepts forged adaptor pre-signatures whose "r" value is not cryptographically bound to the adaptor point "T". This issue has been patched in version 4.2.0.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Références et Patchs

https://github.com/shrec/UltrafastSecp256k1/commit/5478ef566c6af91b48a45c0c61f161f5b1071981 https://github.com/shrec/UltrafastSecp256k1/releases/tag/v4.2.0 https://github.com/shrec/UltrafastSecp256k1/releases/tag/v4.2.1 https://github.com/shrec/UltrafastSecp256k1/security/advisories/GHSA-c7q2-gv3g-rgxm

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