{"id":"JLSEC-2026-346","details":"A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reg_gc_list of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.","modified":"2026-04-29T13:32:34.353499Z","published":"2026-04-29T13:21:01.555Z","upstream":["CVE-2025-6856"],"database_specific":{"license":"CC-BY-4.0","sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-6856","database_specific":{"status":"Analyzed"},"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6856","id":"CVE-2025-6856","imported":"2026-04-29T08:59:45.350Z","modified":"2026-04-29T01:00:01.613Z","published":"2025-06-29T10:15:21.443Z"}]},"references":[{"type":"WEB","url":"https://github.com/HDFGroup/hdf5/issues/5574"},{"type":"WEB","url":"https://github.com/user-attachments/files/20623417/hdf5_crash_6.txt"},{"type":"WEB","url":"https://vuldb.com/?ctiid.314328"},{"type":"WEB","url":"https://vuldb.com/?id.314328"},{"type":"WEB","url":"https://vuldb.com/?submit.602528"}],"affected":[{"package":{"name":"HDF5_jll","ecosystem":"Julia","purl":"pkg:julia/HDF5_jll?uuid=0234f1f7-429e-5d53-9886-15a909be8d59"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.5+0"},{"fixed":"2.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-346.json"}}],"schema_version":"1.7.5"}