{"schema":"threatline.record/2","record":{"id":"CVE-2026-102461","aliases":["GHSA-4m87-8qfr-8p8m"],"summary":"In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the uniqueItems keyword validation uses an O(n²) pairwise comparison loop with no short-circuit or size","details":"In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the uniqueItems keyword validation uses an O(n²) pairwise comparison loop with no short-circuit or size limit. A remote unauthenticated attacker can submit a moderately-sized JSON array that consumes disproportionate CPU time, leading to denial of service.\n\n\n\nThe impacted component is io.vertx:vertx-json-schema.\n\n\n\nThe following Vert.x modules depend on vertx-json-schema and are also affected:\n\n\n\nio.vertx:vertx-web-openapi-router io.vertx:vertx-web-validation io.vertx:vertx-openapi","categories":["Unclassified"],"product":"Eclipse Vert.x","vendor":"Eclipse Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102461","source_modified_at":"2026-10-16T18:40:19.187Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Eclipse Vert.x","vendor":"Eclipse Foundation","versions":[{"status":"affected","version":"4.0.0","lessThanOrEqual":"4.5.34","versionType":"semver"},{"status":"affected","version":"5.0.0","lessThanOrEqual":"5.0.12","versionType":"semver"},{"status":"affected","version":"5.1.0","lessThanOrEqual":"5.1.9","versionType":"semver"},{"status":"affected","version":"5.2.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00383,"percentile":0.31174,"score_date":"2026-10-23"},"published_at":"2026-10-15T08:23:54.256Z","modified_at":"2026-10-16T18:40:19.187Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102461","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T18:40:19.187Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102461","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-vertx/vertx-json-schema/security/advisories/GHSA-4m87-8qfr-8p8m"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/340"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-16T18:37:10.870874Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-16T18:40:19.187Z","content_hash":"4363b697d6c1c5941775ec5a3f9a64df7a7e17a9ebb4e482b541bd717d313e07"}}