- What: Multiple vulnerabilities have been discovered in CRaC JDK 25, including RMI endpoint connection issues, code execution via Desktop.browse(), and CRLF injection in the HttpServer class.
- Why: These vulnerabilities could allow unauthenticated remote attackers to steal sensitive information, execute arbitrary code, or modify files.
- Impact: Systems running CRaC JDK 25 are affected.
It was discovered that the RMI component of CRaC JDK 25 would establish RMI TCP endpoint connections to a remote host without setting an endpoint identification algorithm. An unauthenticated remote attacker could possibly use this issue to steal sensitive information. (CVE-2026-21925) Mingijung discovered that the AWT and JavaFX componenets of CRaC JDK 25 could run programs if Desktop.browse() was supplied a filename as a URI. An unauthenticated remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-21932) Zhihui Chen discovered that the Networking component of CRaC JDK 25 was suceptible to a CRLF injection vulnerability via the HttpServer class. An unauthenticated remote attacker could possibly use this issue to modify files or leak sensitive information. (CVE-2026-21933) Ireneusz Pastusiak discovered that the Security component of CRaC JDK 25 failed to verify provided URIs point to a legitimate source when AIA is enabled. An unauthenticated remote attacker could possibly use this issue to redirect users to malicious hosts. (CVE-2026-21945) In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes. Please see the following for more information: https://openjdk.org/groups/vulnerability/advisories/2026-01-20