Vulnerability Details CVE-2026-1858
wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.1%
CVSS Severity
CVSS v3 Score 4.8
Products affected by CVE-2026-1858