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Case File

CVE-2023-26556

CRITICAL · CVSS 9.1 EPSS 0.86% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-04-21 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-26556
Severity
CRITICAL
CVSS
9.1
EPSS
0.86%

Original NVD Description

io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)