{
  "threat_severity" : "Moderate",
  "public_date" : "2026-07-21T17:28:44Z",
  "bugzilla" : {
    "description" : "Eclipse Foundation OpenJ9: Eclipse OpenJ9: Buffer underflow via tracing method arguments",
    "id" : "2503798",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2503798"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.4",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-124",
  "details" : [ "In Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trace method arguments can lead to buffer underflow.", "A flaw was found in Eclipse OpenJ9. When using the -Xtrace option to trace method arguments, a buffer underflow vulnerability can occur. This could potentially lead to memory corruption, impacting the integrity and availability of the application." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-08-10T00:00:00Z",
    "advisory" : "RHSA-2026:52948",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "java-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-2.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "release_date" : "2026-08-10T00:00:00Z",
    "advisory" : "RHSA-2026:52948",
    "cpe" : "cpe:/o:redhat:enterprise_linux_eus:10.0",
    "package" : "java-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-1.el10_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-08-10T00:00:00Z",
    "advisory" : "RHSA-2026:52949",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::supplementary",
    "package" : "java-1.8.0-ibm-1:1.8.0.8.70-1.el8_10"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-16439\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-16439\nhttps://github.com/eclipse-openj9/openj9/pull/24394\nhttps://gitlab.eclipse.org/security/cve-assignment/-/work_items/192" ],
  "name" : "CVE-2026-16439",
  "csaw" : false
}