CVE-2026-16458: ocrypto 3.0.0 to before 4.0.1

Affected technology

ocrypto · 3.0.0 to before 4.0.1
Oberon microsystems AG

Description’s affected range: versions since 3.0.0 and prior to 4.0.1

Component: RSA PKCS#1 v1.5 decryption

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · No user interaction required

What an attacker can do

An attacker can recover plaintexts via timing measurements of RSA PKCS#1 v1.5 decrypt operations. Vendor/CNA’s CVSS 4.0 assessment (base score 5.9/10) rates confidentiality impact as high; integrity and availability impact as none.