{"id":"JLSEC-2026-352","details":"HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an `h5` file parsed by HDF5 can trigger a write-based heap buffer overflow condition. 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. Real-world exploitability of this issue in terms of remote-code execution is currently unknown. Version 1.14.4-2 fixes the issue.","modified":"2026-07-18T00:01:54.030209888Z","published":"2026-04-29T13:21:01.555Z","upstream":["CVE-2026-26200","EUVD-2026-7979"],"database_specific":{"sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-26200","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26200","database_specific":{"status":"Modified"},"id":"CVE-2026-26200","imported":"2026-07-17T21:42:06.070Z","modified":"2026-07-15T02:19:00.980Z","published":"2026-02-19T20:25:42.610Z"},{"html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7979","id":"EUVD-2026-7979","imported":"2026-07-17T21:42:06.562Z","modified":"2026-06-30T12:08:11Z","published":"2026-02-19T19:19:10Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-7979"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-26200"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2441088"},{"type":"WEB","url":"https://github.com/HDFGroup/hdf5/security/advisories/GHSA-5p2m-j456-9mr2"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26200.json"}],"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":"2.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-352.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:H/I:H/A:H"}]}