{"id":"UBUNTU-CVE-2025-57052","details":"cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in cJSON_Utils.c, allowing remote attackers to bypass array bounds checking and access restricted data via malformed JSON pointer strings containing alphanumeric characters.","modified":"2026-04-22T16:07:05.941900Z","published":"2025-09-03T15:15:00Z","related":["USN-7973-1"],"upstream":["CVE-2025-57052"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-57052"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-57052"},{"type":"REPORT","url":"https://x-0r.com/posts/cJSON-Array-Index-Parsing-Vulnerability"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/pull/957"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/commit/74e1ff4994aa4139126967f6d289b675b4b36fef"},{"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/2025/UBUNTU-CVE-2025-57052.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/2025/UBUNTU-CVE-2025-57052.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/2025/UBUNTU-CVE-2025-57052.json"}},{"package":{"name":"cjson","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/cjson@1.7.18-3.1ubuntu0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.18-3.1ubuntu0.1"}]}],"versions":["1.7.18-3","1.7.18-3.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libcjson1","binary_version":"1.7.18-3.1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-57052.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:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}