{"id":"USN-8003-1","summary":"openjdk-21-crac vulnerabilities","details":"It was discovered that the RMI component of CRaC JDK 21 would establish\nRMI TCP endpoint connections to a remote host without setting an\nendpoint identification algorithm. An unauthenticated remote attacker\ncould possibly use this issue to steal sensitive information.\n(CVE-2026-21925)\n\nMingijung discovered that the AWT and JavaFX componenets of CRaC JDK 21\ncould run programs if Desktop.browse() was supplied a filename as a\nURI. An unauthenticated remote attacker could possibly use this issue\nto execute arbitrary code. (CVE-2026-21932)\n\nZhihui Chen discovered that the Networking component of CRaC JDK 21\nwas suceptible to a CRLF injection vulnerability via the HttpServer\nclass. An unauthenticated remote attacker could possibly use this\nissue to modify files or leak sensitive information. (CVE-2026-21933)\n\nIreneusz Pastusiak discovered that the Security component of CRaC JDK\n21 failed to verify provided URIs point to a legitimate source when\nAIA is enabled. An unauthenticated remote attacker could possibly\nuse this issue to redirect users to malicious hosts.\n(CVE-2026-21945)\n\nIn addition to security fixes, the updated packages contain bug fixes,\nnew features, and possibly incompatible changes.\n\nPlease see the following for more information:\nhttps://openjdk.org/groups/vulnerability/advisories/2026-01-20","modified":"2026-02-10T04:50:49Z","published":"2026-02-02T23:40:30Z","related":["UBUNTU-CVE-2026-21925","UBUNTU-CVE-2026-21932","UBUNTU-CVE-2026-21933","UBUNTU-CVE-2026-21945"],"upstream":["CVE-2026-21925","CVE-2026-21932","CVE-2026-21933","CVE-2026-21945","UBUNTU-CVE-2026-21925","UBUNTU-CVE-2026-21932","UBUNTU-CVE-2026-21933","UBUNTU-CVE-2026-21945"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8003-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-21925"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-21932"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-21933"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-21945"}],"affected":[{"package":{"name":"openjdk-21-crac","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/openjdk-21-crac@21.0.10+7-0ubuntu1~25.10?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.10+7-0ubuntu1~25.10"}]}],"versions":["21.0.6+7-0ubuntu1","21.0.7+6.1-0ubuntu1","21.0.8+9-0ubuntu1","21.0.9+10-0ubuntu1~25.10"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-demo"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-jdk"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-jdk-headless"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-jre"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-jre-headless"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-jre-zero"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-source"},{"binary_version":"21.0.10+7-0ubuntu1~25.10","binary_name":"openjdk-21-crac-testsupport"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8003-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-21925"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-21932"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-21933"},{"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"}],"id":"CVE-2026-21945"}],"ecosystem":"Ubuntu:25.10"}}}],"schema_version":"1.7.3"}