{"id":"CVE-2026-113602","summary":"json-smart through 2.6.0 Strict-Mode Validation Bypass via 0x1A Character","details":"json-smart through 2.6.0 contains an input validation bypass vulnerability that allows attackers to evade strict-mode trailing-data checks by inserting a literal 0x1A character. Attackers can append 0x1A and malformed content to pass JSONValue.parseStrict or isValidJsonStrict validation, creating parser differentials with downstream parsers like Jackson or Gson.","modified":"2026-10-21T02:55:53.364253350Z","published":"2026-10-20T15:40:29.753Z","database_specific":{"cwe_ids":["CWE-147"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113602.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113602.json"},{"type":"PACKAGE","url":"https://github.com/netplex/json-smart-v2"},{"type":"ARTICLE","url":"https://github.com/netplex/json-smart-v2/blob/v2.6.0/json-smart/src/main/java/net/minidev/json/parser/JSONParserBase.java"},{"type":"REPORT","url":"https://github.com/netplex/json-smart-v2/issues/302"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113602"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/json-smart-through-2.6.0-strict-mode-validation-bypass-via-0x1a-character"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/netplex/json-smart-v2","events":[{"introduced":"0"},{"last_affected":"ebf7cf8cf0dccef246cd1ed0d052074d787a2de4"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"2.6.0"}],"source":"AFFECTED_FIELD"}]}}],"versions":["v2.6.0","2.5.2","2.5.1","2.5.0","2.4.11","2.4.10","2.4.9","2.4.8","2.4.5","2.4.1","2.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113602.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}