{"id":"UBUNTU-CVE-2026-0821","details":"A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.","modified":"2026-05-20T16:24:06.222735415Z","published":"2026-01-10T13:15:00Z","upstream":["CVE-2026-0821"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-0821"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-0821"},{"type":"REPORT","url":"https://github.com/quickjs-ng/quickjs/pull/1299"},{"type":"REPORT","url":"https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.340355"},{"type":"REPORT","url":"https://vuldb.com/?id.340355"},{"type":"REPORT","url":"https://vuldb.com/?submit.731780"}],"affected":[{"package":{"name":"quickjs","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/quickjs?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2021.03.27-1","2021.03.27-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libquickjs","binary_version":"2021.03.27-1ubuntu0.1~esm1"},{"binary_name":"quickjs","binary_version":"2021.03.27-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0821.json"}},{"package":{"name":"quickjs","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/quickjs?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2024.01.13-5","2025.04.26-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libquickjs","binary_version":"2025.04.26-1"},{"binary_version":"2025.04.26-1","binary_name":"quickjs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0821.json"}},{"package":{"name":"quickjs","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/quickjs?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2025.04.26-1","2025.04.26-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libquickjs","binary_version":"2025.04.26-1build1"},{"binary_name":"quickjs","binary_version":"2025.04.26-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0821.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"},{"type":"Ubuntu","score":"medium"}]}