{"schema":"threatline.record/2","record":{"id":"CVE-2026-102477","aliases":["GHSA-4wvq-75mw-q6cg"],"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], a gRPC endpoint does have a configurable per message maximum size in bytes, however the maximum size ap","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], a gRPC endpoint does have a configurable per message maximum size in bytes, however the maximum size applies to the received bytes. When applied to a compressed message, this only applies to the compressed size and not the actual size of the uncompressed content. This can be used to force a gRPC endpoint to allocate more bytes than the value defined by the configuration, making the endpoint vulnerable to compression bomb attacks.\n\n\n\nThe impacted component is io.vertx:vertx-gprc-server.","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-2026-102477","source_modified_at":"2026-10-15T14:16:51.106Z","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-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","source_modified_at":"2026-10-15T13:18:41Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-grpc-server"},"range":">= 4.0.0, <= 4.5.34"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","source_modified_at":"2026-10-15T13:18:41Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-grpc-server"},"range":">= 5.0.0, <= 5.1.8"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","source_modified_at":"2026-10-15T13:18:41Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-grpc-server"},"range":"5.2.0"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","source_modified_at":"2026-10-15T13:18:41Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-grpc-server"},"version":"4.5.35"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","source_modified_at":"2026-10-15T13:18:41Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-grpc-server"},"version":"5.1.10"},{"source":"GitHub Advisory Database","source_url":"https://github.com/eclipse-vertx/vertx-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","source_modified_at":"2026-10-15T13:18:41Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"ecosystem":"maven","name":"io.vertx:vertx-grpc-server"},"version":"5.2.1"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00318,"percentile":0.23577,"score_date":"2026-10-23"},"published_at":"2026-10-15T08:28:25.876Z","modified_at":"2026-10-15T14:16:51.106Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102477","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T14:16:51.106Z"},{"source":"GitHub Advisory Database","url":"https://github.com/eclipse-vertx/vertx-grpc/security/advisories/GHSA-4wvq-75mw-q6cg","fetched_at":"2026-10-24T00:31:04.721601Z","source_modified_at":"2026-10-15T13:18:41Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102477","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-grpc/security/advisories/GHSA-4wvq-75mw-q6cg"},{"source":"CVE List","url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/349"}],"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":"2026-10-15T14:16:33.658499Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T14:16:51.106Z","content_hash":"360d2c54a005e3620ac55f77dca0fac6abfa70a833b07fd32d46eb471fb48fbc"}}