{"schema":"threatline.record/2","record":{"id":"CVE-2026-111075","aliases":[],"summary":"JITServer: Pre-authentication remote crash via integer underflow and out-of-bounds heap read in DataDescriptor deserialization","details":"In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component fails to perform cross-field validation on attacker-controlled `_size`, `_paddingSize`, and `_dataOffset` fields during `DataDescriptor` message deserialization. An unauthenticated remote attacker can send a crafted network payload that triggers an unsigned integer underflow in `DataDescriptor::getPayloadSize()` and `DataDescriptor::getNextDescriptor()`. This results in an out-of-bounds heap read and an immediate process crash (SIGSEGV), causing a denial of service.","categories":["Unclassified"],"product":"Eclipse OpenJ9","vendor":"Eclipse Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111075","source_modified_at":"2026-10-21T08:00:32.804Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Eclipse OpenJ9","vendor":"Eclipse Foundation","versions":[{"status":"affected","version":"0.8.0","lessThan":"0.63","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111075","source_modified_at":"2026-10-21T08:00:32.804Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Eclipse OpenJ9","ecosystem":null},"version":"0.63","basis":"first unaffected version stated in the CVE record"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00372,"percentile":0.29957,"score_date":"2026-10-23"},"published_at":"2026-10-21T08:00:32.804Z","modified_at":"2026-10-21T08:00:32.804Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111075","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T08:00:32.804Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111075","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/eclipse-openj9/openj9/pull/25009"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/941"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/423"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-21T08:00:32.804Z","content_hash":"b973de86303078a3d9fd961b058c949c3dcf85836de2ec2247b0e5ce45ebb206"}}