{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-8751 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-8751 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-8751 is a medium-severity unsafe deserialization vulnerability in h2oai h2o-3, published on 17 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-8751 and fix it if it is affected.\n\nWhat it is: CVE-2026-8751 is a medium-severity unsafe deserialization vulnerability in h2oai h2o-3, published on 17 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-8751 in the wild and no public exploit code.\n\nAffected product: h2oai h2o-3. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-8751/ (Markdown: https://insights.sbomify.com/CVE-2026-8751/index.md)","id":"CVE-2026-8751","markdown":"https://insights.sbomify.com/CVE-2026-8751/index.md","name":"CVE-2026-8751","record":{"aliases":["GHSA-gvx7-3472-56wj"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"h2o-3 machine learning library","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via unsafe deserialization in the h2o-3 library's model import function.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"h2o","vendor":"h2o"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A security flaw has been discovered in h2oai h2o-3 up to 7402. This affects the function importBinaryModel of the file h2o-core/src/main/java/hex/Model.java of the component JAR Handler. Performing a manipulation results in deserialization. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"h2oai h2o-3 JAR Model.java importBinaryModel deserialization","id":"CVE-2026-8751","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"h2oai h2o-3 Rapids setproperty Primitive AstSetProperty.java exec access control","id":"CVE-2026-8752"},"packages":[],"prev":{"headline":"h2oai h2o-3 ImportFile API PersistNFS.java importFiles information disclosure","id":"CVE-2026-8750"},"products":["h2o-3"],"published":"2026-05-17","related":[{"cvss_score":10,"headline":"H2O Remote Code Execution via POJO Model Import","id":"CVE-2023-6016","kev_date_added":null,"published":"2023-11-16"},{"cvss_score":9.8,"headline":"Deserialization Vulnerability in h2oai/h2o-3","id":"CVE-2025-6544","kev_date_added":null,"published":"2025-09-21"},{"cvss_score":9.8,"headline":"Jdbc Deserialization in h2oai/h2o-3","id":"CVE-2024-10553","kev_date_added":null,"published":"2025-03-20"},{"cvss_score":9.3,"headline":"External Control of File Name or Path in h2oai/h2o-3","id":"CVE-2023-6569","kev_date_added":null,"published":"2023-12-14"},{"cvss_score":9.3,"headline":"H2O Local File Include","id":"CVE-2023-6013","kev_date_added":null,"published":"2023-11-16"},{"cvss_score":9.3,"headline":"Local File Inclusion in h2oai/h2o-3","id":"CVE-2023-6038","kev_date_added":null,"published":"2023-11-16"},{"cvss_score":9.1,"headline":"H2O.ai H2O vulnerable to deserialization attacks via a JDBC Connection URL","id":"CVE-2024-45758","kev_date_added":null,"published":"2024-09-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-18","vendors":["h2oai"]},"summary":"Remote attackers can execute arbitrary code via unsafe deserialization in the h2o-3 library's model import function.","url":"https://insights.sbomify.com/CVE-2026-8751/"}