{"id":"JLSEC-2026-353","details":"HDF5 is software for managing data. In 1.14.1-2 and earlier, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition in the `H5T__ref_mem_setnull` method. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems.","modified":"2026-07-25T18:24:20.415785061Z","published":"2026-04-29T13:21:01.555Z","upstream":["CVE-2026-29043","EUVD-2026-21406"],"database_specific":{"license":"CC-BY-4.0","sources":[{"modified":"2026-06-17T10:29:29.800Z","published":"2026-04-10T16:16:30.693Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-29043","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29043","database_specific":{"status":"Analyzed"},"id":"CVE-2026-29043","imported":"2026-07-17T21:42:12.187Z"},{"id":"EUVD-2026-21406","imported":"2026-07-17T21:42:16.720Z","modified":"2026-04-14T14:50:46Z","published":"2026-04-10T15:35:51Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-21406","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-21406"}]},"references":[{"type":"WEB","url":"https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277"}],"affected":[{"package":{"name":"HDF5_jll","ecosystem":"Julia","purl":"pkg:julia/HDF5_jll?uuid=0234f1f7-429e-5d53-9886-15a909be8d59"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.14.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-353.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}