{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6507 exists.","fix":"No fix has been published for CVE-2025-6507 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-6507 is a critical unsafe deserialization vulnerability in h2oai/h2o-3, published on 1 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-6507 and fix it if it is affected.\n\nWhat it is: CVE-2025-6507 is a critical unsafe deserialization vulnerability in h2oai/h2o-3, published on 1 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6507 exists.\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-2025-6507/ (Markdown: https://insights.sbomify.com/CVE-2025-6507/index.md)","id":"CVE-2025-6507","markdown":"https://insights.sbomify.com/CVE-2025-6507/index.md","name":"CVE-2025-6507","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"H2O-3 machine learning library","requires_auth":"none","summary":"Attackers can bypass JDBC parameter filters to trigger deserialization, leading to arbitrary code execution and system file access in H2O-3.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntr_ai","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"A vulnerability in the h2oai/h2o-3 repository allows attackers to exploit deserialization of untrusted data, potentially leading to arbitrary code execution and reading of system files. This issue affects the latest master branch version 3.47.0.99999. The vulnerability arises from the ability to bypass regular expression filters intended to prevent malicious parameter injection in JDBC connections. Attackers can manipulate spaces between parameters to evade detection, allowing for unauthorized file access and code execution. The vulnerability is addressed in version 3.46.0.8.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Deserialization of Untrusted Data in h2oai/h2o-3","id":"CVE-2025-6507","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in WSO2 API Manager","id":"CVE-2025-6508"},"packages":[],"prev":{"headline":"Auth bypass in Hybrid Data Pipeline","id":"CVE-2025-6505"},"products":["h2oai/h2o-3"],"published":"2025-09-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-09-02","vendors":["h2oai"]},"summary":"Attackers can bypass JDBC parameter filters to trigger deserialization, leading to arbitrary code execution and system file access in H2O-3.","url":"https://insights.sbomify.com/CVE-2025-6507/"}