USN-8333-1

Thomas Beckers discovered that the JAXP component of CRaC JDK 21 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 21 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 21 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 21 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 21 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 21 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 21 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

References

Affected packages

Ubuntu:25.10 / openjdk-21-crac

Package

Name: openjdk-21-crac
Purl: pkg:deb/ubuntu/openjdk-21-crac?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

21.0.11+10-0ubuntu1~25.10.1

Affected versions

21.*

21.0.6+7-0ubuntu1

21.0.7+6.1-0ubuntu1

21.0.8+9-0ubuntu1

21.0.9+10-0ubuntu1~25.10

21.0.10+7-0ubuntu1~25.10

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-demo"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-jdk"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-jdk-headless"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-jre"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-jre-headless"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-jre-zero"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-source"
        },
        {
            "binary_version": "21.0.11+10-0ubuntu1~25.10.1",
            "binary_name": "openjdk-21-crac-testsupport"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8333-1.json"

cves_map

{
    "ecosystem": "Ubuntu:25.10",
    "cves": [
        {
            "id": "CVE-2026-22007",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-22013",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-22016",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-22018",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-22021",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-23865",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-34268",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-34282",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:26.04:LTS / openjdk-21-crac