{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/java-se-17.0.19/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.5,"id":"CVE-2026-47063"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Java SE 8u491","Java SE 8u491-perf","Java SE 11.0.31","Java SE 17.0.19","Java SE 21.0.11","Java SE 25.0.3","Java SE 26.0.1","GraalVM for JDK 17.0.19","GraalVM for JDK 21.0.11","GraalVM Enterprise Edition 21.3.18"],"_cs_severities":["high"],"_cs_tags":["vulnerability","java","oracle","graalvm","integrity","data-manipulation"],"_cs_type":"advisory","_cs_vendors":["Oracle"],"content_html":"\u003cp\u003eCVE-2026-47063 is a high-severity vulnerability impacting the Libraries component of Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition. This flaw affects multiple versions, including Oracle Java SE 8u491, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK 17.0.19 and 21.0.11; and Oracle GraalVM Enterprise Edition 21.3.18. The vulnerability is easily exploitable, allowing unauthenticated attackers with network access through various protocols to compromise the affected Java installations. Exploitation can occur by leveraging APIs within the vulnerable component, potentially through web services that supply data to these APIs. Additionally, Java deployments running sandboxed Java Web Start applications or applets that load untrusted code and rely on the Java sandbox are also susceptible. Successful attacks lead to unauthorized creation, deletion, or modification of critical data, severely impacting data integrity.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eReconnaissance\u003c/strong\u003e: An unauthenticated attacker identifies an internet-facing application or service running a vulnerable version of Oracle Java SE, Oracle GraalVM for JDK, or Oracle GraalVM Enterprise Edition (e.g., 8u491, 17.0.19).\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eVulnerability Identification\u003c/strong\u003e: The attacker determines that the target application exposes an API endpoint which relies on the vulnerable Libraries component of Java SE or GraalVM.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eMalicious Request Crafting\u003c/strong\u003e: The attacker develops a specially crafted network request (e.g., an HTTP POST request if the API is exposed via a web service) designed to trigger the CVE-2026-47063 flaw.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eExploitation via API\u003c/strong\u003e: The malicious request is sent to the vulnerable API endpoint, exploiting the integrity bypass vulnerability within the Java Libraries component.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eUnauthorized Data Interaction\u003c/strong\u003e: Successful exploitation grants the attacker unauthorized control over data processing mechanisms within the affected Java application.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eData Integrity Compromise\u003c/strong\u003e: The attacker leverages this unauthorized control to perform actions such as creating new, deleting existing, or modifying critical data accessible to the compromised Java instance.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eImpact Achieved\u003c/strong\u003e: The organization experiences loss of data integrity, potentially leading to data corruption, operational disruption, or financial losses.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eThe successful exploitation of CVE-2026-47063 leads to a severe integrity compromise, as unauthenticated attackers gain the ability to perform unauthorized creation, deletion, or modification of critical data accessible by the vulnerable Java SE or GraalVM installation. This can result in irreversible data corruption, loss of trust in data accuracy, and significant operational disruption for affected applications and services. While no specific victim counts are available in this advisory, any organization utilizing the affected Oracle Java or GraalVM products in a network-accessible configuration is at risk of severe data integrity breaches.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately patch all affected Oracle Java SE and GraalVM installations to the latest secure versions to remediate CVE-2026-47063.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to restrict direct unauthenticated network access to services or applications utilizing Java SE and GraalVM components where possible.\u003c/li\u003e\n\u003cli\u003eMonitor application logs and web server access logs for unusual requests directed at API endpoints, particularly those interacting with the Libraries component, which could indicate exploitation attempts of CVE-2026-47063.\u003c/li\u003e\n\u003cli\u003eRegularly back up critical data to facilitate recovery in the event of a data integrity compromise resulting from CVE-2026-47063 exploitation.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-21T22:57:39Z","date_published":"2026-07-21T22:57:39Z","id":"https://feed.craftedsignal.io/briefs/2026-07-oracle-java-se-graalvm-cve-2026-47063/","summary":"An easily exploitable vulnerability, CVE-2026-47063, in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition allows unauthenticated attackers with network access to achieve unauthorized creation, deletion, or modification of critical data via API exploitation, impacting data integrity.","title":"Oracle Java SE and GraalVM Vulnerability CVE-2026-47063 Allows Unauthenticated Data Integrity Compromise","url":"https://feed.craftedsignal.io/briefs/2026-07-oracle-java-se-graalvm-cve-2026-47063/"}],"language":"en","title":"CraftedSignal Threat Feed - Java SE 17.0.19","version":"https://jsonfeed.org/version/1.1"}