CVE-2026-3303: Concert 1.0.0 through 3.0.0

Affected technology

Concert · 1.0.0 through 3.0.0
IBM

Description’s affected range: through 3.0.0 uses cross-origin resource sharing (CORS) which could

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker could carry out privileged actions as the domain name is not being limited to only trusted domains. Vendor/CNA’s CVSS 3.1 assessment (base score 3.7/10) rates confidentiality impact as low; integrity and availability impact as none.