{"id":"JLSEC-2026-1293","details":"An issue was discovered in the function `mark_beginning_as_normal` in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the `mark_beginning_as_normal` function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service.","modified":"2026-08-13T11:00:03.460562063Z","published":"2026-08-13T10:57:26.913Z","upstream":["CVE-2019-6293"],"database_specific":{"license":"CC-BY-4.0","sources":[{"published":"2019-01-15T00:29:00.523Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2019-6293","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6293","database_specific":{"status":"Modified"},"id":"CVE-2019-6293","imported":"2026-08-12T16:01:32.361Z","modified":"2026-06-17T02:38:57.997Z"}]},"references":[{"type":"WEB","url":"https://github.com/westes/flex/issues/414"},{"type":"WEB","url":"https://github.com/westes/flex/issues/414"}],"affected":[{"package":{"name":"flex_jll","ecosystem":"Julia","purl":"pkg:julia/flex_jll?uuid=48a596b8-cc7a-5e48-b182-65f75e8595d0"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1293.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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"NVD"}]}