{"id":"UBUNTU-CVE-2023-26819","details":"cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {\"a\": true, \"b\": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.","modified":"2026-04-22T16:38:46.585142Z","published":"2025-04-19T22:15:00Z","related":["USN-7973-1"],"upstream":["CVE-2023-26819"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-26819"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-26819"},{"type":"REPORT","url":"https://github.com/boofish/json_bugs/tree/main/cjson"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/commit/a328d65ad490b64da8c87523cbbfe16050ba5bf6"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7973-1"}],"affected":[{"package":{"name":"cjson","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/cjson@1.7.10-1.1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.10-1.1ubuntu0.1~esm1"}]}],"versions":["1.7.10-1.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libcjson1","binary_version":"1.7.10-1.1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26819.json"}},{"package":{"name":"cjson","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/cjson@1.7.15-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.15-1ubuntu0.1"}]}],"versions":["1.7.14-1","1.7.15-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libcjson1","binary_version":"1.7.15-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26819.json"}},{"package":{"name":"cjson","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/cjson@1.7.17-1ubuntu0.1~esm3?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.17-1ubuntu0.1~esm3"}]}],"versions":["1.7.16-1","1.7.16-2","1.7.17-1","1.7.17-1ubuntu0.1~esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libcjson1","binary_version":"1.7.17-1ubuntu0.1~esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26819.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}