{"schema":"threatline.record/2","record":{"id":"CVE-2026-103223","aliases":["GHSA-hm2j-xp3c-jff2"],"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 PostgreSQL message decoder reads the 4-byte message length field from the PostgreSQL wire protocol ","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 PostgreSQL message decoder reads the 4-byte message length field from the PostgreSQL wire protocol without any maximum validation. A malicious, compromised, or man-in-the-middle PostgreSQL server can send a message header with the length field set to an extremely large value (up to Integer.MAX_VALUE), causing the decoder to accumulate subsequent TCP data into a composite buffer without bound, leading to unbounded memory allocation on the client and an out-of-memory crash. This occurs before authentication completes.\n\n\n\nThe impacted component is io.vertx:vertx-pg-client.","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-2026-103223","source_modified_at":"2026-10-15T14:26:35.477Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Eclipse Vert.x","vendor":"Eclipse Foundation","versions":[{"lessThanOrEqual":"4.5.34","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThanOrEqual":"5.0.12","status":"affected","version":"5.0.0","versionType":"semver"},{"lessThanOrEqual":"5.1.9","status":"affected","version":"5.1.0","versionType":"semver"},{"status":"affected","version":"5.2.0","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","source_modified_at":"2026-10-15T13:15:49Z","fetched_at":"2026-10-23T20:00:35.122048Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-pg-client"},"range":"5.2.0"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","source_modified_at":"2026-10-15T13:15:49Z","fetched_at":"2026-10-23T20:00:35.122048Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-pg-client"},"range":">=5.0.0, <=5.1.8"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","source_modified_at":"2026-10-15T13:15:49Z","fetched_at":"2026-10-23T20:00:35.122048Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-pg-client"},"range":"<=4.5.34"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","source_modified_at":"2026-10-15T13:15:49Z","fetched_at":"2026-10-23T20:00:35.122048Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-pg-client"},"version":"5.2.1"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","source_modified_at":"2026-10-15T13:15:49Z","fetched_at":"2026-10-23T20:00:35.122048Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-pg-client"},"version":"5.1.10"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","source_modified_at":"2026-10-15T13:15:49Z","fetched_at":"2026-10-23T20:00:35.122048Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-pg-client"},"version":"4.5.35"}],"cvss":8.2,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00321,"percentile":0.23915,"score_date":"2026-10-23"},"published_at":"2026-10-15T08:20:03.749Z","modified_at":"2026-10-15T14:26:35.477Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103223","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T14:26:35.477Z"},{"source":"GitHub Advisory Database","url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2","fetched_at":"2026-10-23T20:00:35.122048Z","source_modified_at":"2026-10-15T13:15:49Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103223","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-hm2j-xp3c-jff2"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/354"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T14:26:13.854587Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T14:26:35.477Z","content_hash":"dbe43818f2fa29799f175877889a39581cda8940fcdf4e10d0b17ec2dec3c778"}}