{"id":"JLSEC-2026-539","details":"There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.","modified":"2026-05-26T19:45:03.113995007Z","published":"2026-05-26T19:31:24.313Z","upstream":["CVE-2020-27842"],"database_specific":{"license":"CC-BY-4.0","sources":[{"modified":"2024-11-21T05:21:54.960Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27842","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-27842","database_specific":{"status":"Modified"},"published":"2021-01-05T18:15:14.020Z","imported":"2026-05-25T01:08:37.122Z","id":"CVE-2020-27842"}]},"references":[{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1907513"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1907513"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202101-29"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202101-29"},{"type":"WEB","url":"https://www.debian.org/security/2021/dsa-4882"},{"type":"WEB","url":"https://www.debian.org/security/2021/dsa-4882"},{"type":"WEB","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"WEB","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"}],"affected":[{"package":{"name":"OpenJpeg_jll","ecosystem":"Julia","purl":"pkg:julia/OpenJpeg_jll?uuid=643b3616-a352-519d-856d-80112ee9badc"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.4.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-539.json"}}],"schema_version":"1.7.5"}