{"action":"Upgrade h2o to 3.46.0.6 or later.","affected":[{"fixed":"3.46.0.6","introduced":"0"}],"component":"h2o","cve_ids":["CVE-2024-10553"],"ecosystem":"PyPI","epss":0.01587,"exploited":false,"fixed_versions":["3.46.0.6"],"ghsa_id":"GHSA-h7xg-cmpp-48hf","id":"tcs_01M5KFK6D2P7SB7SMMCN9NKG1X","modified_at":"2026-10-27T16:45:03.583847985Z","published_at":"2025-03-20T12:32:39Z","references":["https://osv.dev/vulnerability/GHSA-h7xg-cmpp-48hf","https://nvd.nist.gov/vuln/detail/CVE-2024-10553","https://github.com/h2oai/h2o-3/commit/ac1d642b4d86f10a02d75974055baf2a4b2025ac","https://github.com/h2oai/h2o-3","https://huntr.com/bounties/e6f550dd-eda2-428c-a740-ed8f893a084b","https://github.com/pypa/advisory-database/tree/main/vulns/h2o/PYSEC-2026-351.yaml","https://pypi.org/project/h2o"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"GHSA-h7xg-cmpp-48hf","url":"https://osv.dev/vulnerability/GHSA-h7xg-cmpp-48hf"}],"summary":"H2O Deserialization of Untrusted Data Vulnerability"}