CVE-2026-91334

A flaw was found in OpenJDK's ImageIO component. This vulnerability allows an unauthenticated remote attacker to cause information disclosure by submitting crafted inputs to applications or web services using the ImageIO application programming interface (API). Successful exploitation can result in unauthorized read access to a subset of accessible data.

This vulnerability is rated as Low impact for Red Hat products because successful exploitation requires high attack complexity and only enables unauthorized exposure of limited process memory, with no impact on data integrity or availability. Within Red Hat deployments, exposure is confined to Java applications that specifically ingest and decode untrusted graphic streams using the ImageIO subsystem. Workloads that do not process untrusted image files are not exposed to this issue.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.