{"id":"JLSEC-2026-1294","details":"An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in `libxls/xls2csv.c:199`. It could allow a remote attacker to cause a denial of service via crafted XLS file.","modified":"2026-08-13T11:00:03.429363295Z","published":"2026-08-13T10:57:26.913Z","upstream":["CVE-2020-27819"],"database_specific":{"sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-27819","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27819","database_specific":{"status":"Modified"},"id":"CVE-2020-27819","imported":"2026-08-12T16:06:13.387Z","modified":"2026-06-17T03:09:40.823Z","published":"2021-02-23T04:15:13.883Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1903296"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1903296"}],"affected":[{"package":{"name":"libxls_jll","ecosystem":"Julia","purl":"pkg:julia/libxls_jll?uuid=86717fa1-76ed-5f2d-aba0-009d7207923f"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.6.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1294.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V2","score":"AV:N/AC:M/Au:N/C:N/I:N/A:P","source":"NVD"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"NVD"}]}