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4.8 Medium

CVE-2026-1858 wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU)

Description

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.

Affected products and versions

Product Affected versions Fixed in
wget2 2.2 earliest → 2.2.1 No fix stated

References

Timeline

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