Oracle Patches Three Java SE Compiler Flaws
NCSC-NL advisory: Oracle fixed three high-severity, remotely exploitable vulnerabilities in Java SE and GraalVM's Compiler component, no exploitation reported.
Sourceadvisories.ncsc.nl — open the original
What to check
- Applies to
- The 3 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
NCSC-NL published an advisory summarizing three vulnerabilities patched by Oracle in Java SE, including Oracle GraalVM for JDK and Oracle GraalVM Enterprise Edition. All three flaws reside in the Compiler component and can be exploited remotely by unauthenticated attackers without user interaction, according to Oracle. Successful exploitation could lead to unauthorized access to sensitive information, data modification, or disruption of availability, with Oracle noting that exploitation could result in full takeover of the affected product, though it also characterizes exploitation as difficult.
The highest-scoring issues are CVE-2026-83357 and CVE-2026-83408, both rated CVSS 8.1, followed by CVE-2026-83368 at CVSS 7.0. None of the three vulnerabilities are classified as critical by Oracle. There is no indication in this advisory of active in-the-wild exploitation; this is a routine patch advisory. Defenders running Oracle Java SE or GraalVM products should apply Oracle's released updates and prioritize patching of the higher-scoring compiler vulnerabilities, particularly on internet-facing or network-accessible services using affected Java/GraalVM runtimes.
Mentioned in this report
Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0380.html
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