{"schema":"threatline.record/2","record":{"id":"CVE-2026-111074","aliases":[],"summary":"JITServer: Pre-authentication remote Denial of Service via integer overflow infinite loop in MessageBuffer::computeRequiredCapacity()","details":"In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component is vulnerable to a pre-authentication remote denial of service. When processing the initial 4-byte length field of an incoming TCP connection, an integer overflow in `MessageBuffer::computeRequiredCapacity()` causes the receiving compilation worker thread to enter an infinite loop consuming ~100% CPU. An unauthenticated remote attacker can exploit this by opening a small number of crafted TCP connections to exhaust the entire worker thread pool, silently halting compilation services for all connected client JVMs.","categories":["Unclassified"],"product":"Eclipse OpenJ9","vendor":"Eclipse Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111074","source_modified_at":"2026-10-21T07:57:16.912Z","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-2026-111074","source_modified_at":"2026-10-21T07:57:16.912Z","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":0.00421,"percentile":0.35414,"score_date":"2026-10-23"},"published_at":"2026-10-21T07:57:16.912Z","modified_at":"2026-10-21T07:57:16.912Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111074","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T07:57:16.912Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111074","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/25008"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/940"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/422"}],"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":"2026-10-21T07:57:16.912Z","content_hash":"3f2b2fc9620986944a929765b3c10fe0bbe1bc38807ea7ff242203a87fe7a579"}}