{"id":"USN-8328-1","summary":"openjdk-21 vulnerabilities","details":"Thomas Beckers discovered that the JAXP component of OpenJDK 21 did not\ncorrectly authenticate certain APIs. A remote unauthenticated attacker\ncould possibly use this issue to gain unauthorized access to sensitive\ninformation. (CVE-2026-22016)\n\nIt was discovered that the Networking component of OpenJDK 21 did not\ncorrectly authenticate certain APIs. A remote unauthenticated attacker\ncould possibly use this issue to cause a denial of service.\n(CVE-2026-34282)\n\nIt was discovered that the JSSE component of OpenJDK 21 did not correctly\nauthenticate certain APIs. A remote unauthenticated attacker could possibly\nuse this issue to cause a denial of service. (CVE-2026-22021)\n\nIt was discovered that the JGSS component of OpenJDK 21 did not correctly\nauthenticate certain APIs. A remote attacker could possibly use this issue\nto obtain sensitive information. (CVE-2026-22013)\n\nIt was discovered that the 2D component of OpenJDK 21 did not correctly\nhandle certain integer arithmetic. If a user or automated system were\ntricked into opening a specially crafted file, an attacker could possibly\nuse this issue to leak sensitive information. (CVE-2026-23865)\n\nIt was discovered that the Libraries component of OpenJDK 21 did not\ncorrectly authenticate certain APIs. A remote unauthenticated attacker\ncould possibly use this issue to cause a denial of service.\n(CVE-2026-22018)\n\nKen Pyle discovered that the Security component of OpenJDK 21 did not\ncorrectly authenticate certain APIs. A local attacker could possibly use\nthis issue to leak sensitive information. (CVE-2026-22007, CVE-2026-34268)\n\nIn addition to security fixes, the updated packages contain bug fixes, new\nfeatures, and possibly incompatible changes.\n\nPlease see the following for more information:\nhttps://openjdk.org/groups/vulnerability/advisories/2026-04-21","modified":"2026-05-29T10:59:19.555210100Z","published":"2026-05-28T06:22:59Z","related":["UBUNTU-CVE-2026-22007","UBUNTU-CVE-2026-22013","UBUNTU-CVE-2026-22016","UBUNTU-CVE-2026-22018","UBUNTU-CVE-2026-22021","UBUNTU-CVE-2026-23865","UBUNTU-CVE-2026-34268","UBUNTU-CVE-2026-34282"],"upstream":["CVE-2026-22007","CVE-2026-22013","CVE-2026-22016","CVE-2026-22018","CVE-2026-22021","CVE-2026-23865","CVE-2026-34268","CVE-2026-34282","UBUNTU-CVE-2026-22007","UBUNTU-CVE-2026-22013","UBUNTU-CVE-2026-22016","UBUNTU-CVE-2026-22018","UBUNTU-CVE-2026-22021","UBUNTU-CVE-2026-23865","UBUNTU-CVE-2026-34268","UBUNTU-CVE-2026-34282"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8328-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-22007"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-22013"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-22016"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-22018"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-22021"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-23865"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34268"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34282"}],"affected":[{"package":{"name":"openjdk-21","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/openjdk-21?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~20.04.2"}]}],"versions":["21.0.1+12-2~20.04.1","21.0.2+13-1~20.04.1","21.0.3+9-1ubuntu1~20.04.1","21.0.4+7-1ubuntu2~20.04","21.0.5+11-1ubuntu1~20.04","21.0.6+7-1~20.04.1","21.0.7+6~us1-0ubuntu1~20.04","21.0.8+9~us1-0ubuntu1~20.04.1","21.0.9+10-1~20.04","21.0.10+7-1~20.04"],"ecosystem_specific":{"binaries":[{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-demo"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-jdk"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-jdk-headless"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-jre"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-jre-headless"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-jre-zero"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-source"},{"binary_version":"21.0.11+10-1~20.04.2","binary_name":"openjdk-21-testsupport"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8328-1.json","cves_map":{"cves":[{"id":"CVE-2026-22007","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-22013","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-22016","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-22018","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-22021","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-23865","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-34268","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-34282","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}},{"package":{"name":"openjdk-21","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/openjdk-21?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~22.04.2"}]}],"versions":["21.0.1+12-2~22.04","21.0.2+13-1~22.04.1","21.0.3+9-1ubuntu1~22.04.1","21.0.4+7-1ubuntu2~22.04","21.0.5+11-1ubuntu1~22.04","21.0.6+7-1~22.04.1","21.0.7+6~us1-0ubuntu1~22.04","21.0.8+9~us1-0ubuntu1~22.04.1","21.0.9+10-1~22.04","21.0.10+7-1~22.04"],"ecosystem_specific":{"binaries":[{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-demo"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-jdk"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-jdk-headless"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-jre"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-jre-headless"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-jre-zero"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-source"},{"binary_version":"21.0.11+10-1~22.04.2","binary_name":"openjdk-21-testsupport"}],"availability":"No 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subscription 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