Thomas Beckers discovered that the JAXP component of CRaC JDK 17 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to gain unauthorized access to sensitive information. (CVE-2026-22016)
It was discovered that the Networking component of CRaC JDK 17 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to cause a denial of service. (CVE-2026-34282)
It was discovered that the JSSE component of CRaC JDK 17 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the JGSS component of CRaC JDK 17 did not correctly authenticate certain APIs. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-22013)
It was discovered that the 2D component of CRaC JDK 17 did not correctly handle certain integer arithmetic. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to leak sensitive information. (CVE-2026-23865)
It was discovered that the Libraries component of CRaC JDK 17 did not correctly authenticate certain APIs. A remote unauthenticated attacker could possibly use this issue to cause a denial of service. (CVE-2026-22018)
Ken Pyle discovered that the Security component of CRaC JDK 17 did not correctly authenticate certain APIs. A local attacker could possibly use this issue to leak sensitive information. (CVE-2026-22007, CVE-2026-34268)
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/2026-04-21
17.0.19+10-0ubuntu1~25.10.117.0.19+10-0ubuntu1~26.04.1