{"id":"CVE-2021-28026","aliases":["EUVD-2021-14744","GHSA-79f7-6jwc-94qw"],"status":"published","title":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation....","description":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01172,"percentile":0.67722,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-03-05T13:17:38Z","modified":"2026-10-20T10:54:37Z","products":[{"vendor":"jpeg","product":"jpeg-xl"}],"references":[{"url":"https://gitlab.com/wg1/jpeg-xl/-/issues/163","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28026"},{"url":"https://github.com/advisories/GHSA-79f7-6jwc-94qw"}],"sources":{"cve":[{"id":"CVE-2021-28026","description":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.","status":"published","published":"2021-03-05T13:17:38Z","modified":"2024-08-03T21:33:17.413Z","updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-14744","description":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.","status":"published","published":"2021-03-05T13:17:38Z","modified":"2024-08-03T21:33:17Z","updated_at":"2026-11-03T03:24:47.80549Z"}],"ghsa":[{"id":"GHSA-79f7-6jwc-94qw","title":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation....","description":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.","status":"published","published":"2022-05-24T17:43:47Z","modified":"2023-01-29T05:05:34Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:49.842411Z"}],"nvd":[{"id":"CVE-2021-28026","description":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.","status":"published","published":"2021-03-05T14:15:13.687Z","modified":"2026-06-17T03:45:44.36Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:50.399901Z"}],"osv":[{"id":"CVE-2021-28026","description":"jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.","status":"published","published":"2021-03-05T14:15:13.687Z","modified":"2026-10-20T10:54:37.062226353Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.129331Z"}]}}