CVE-2021-31917: Infinispan Infinispan-Server-Rest

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

A flaw was found in Red Hat DataGrid 8.x (8.0.0, 8.0.1, 8.1.0 and 8.1.1) and Infinispan (10.0.0 through 12.0.0). An attacker could bypass authentication on all REST endpoints when DIGEST is used as the authentication method. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected products

• Infinispan Infinispan-Server-Rest: from 10.0.0, before 11.0.12 (fixed in 11.0.12); from 12.0.0, before 12.1.4 (fixed in 12.1.4)
• Red Hat Data Grid: version 8.0.0 only; version 8.0.1 only; version 8.1.0 only; version 8.1.1 only

Published 2021-09-21. Last modified 2026-06-17.