{"id":"CVE-2026-87933","state":"PUBLISHED","title":"DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free","description":"A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.","publishedAt":"2026-09-10T00:15:08.473Z","updatedAt":"2026-09-10T19:06:09.220Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"VulDB"},"assigner":"VulDB","products":["DaveGamble cJSON"],"affected":[{"vendor":"DaveGamble","product":"cJSON","versions":[{"version":"1.7.0","status":"affected"},{"version":"1.7.1","status":"affected"},{"version":"1.7.2","status":"affected"},{"version":"1.7.3","status":"affected"},{"version":"1.7.4","status":"affected"},{"version":"1.7.5","status":"affected"},{"version":"1.7.6","status":"affected"},{"version":"1.7.7","status":"affected"},{"version":"1.7.8","status":"affected"},{"version":"1.7.9","status":"affected"},{"version":"1.7.10","status":"affected"},{"version":"1.7.11","status":"affected"},{"version":"1.7.12","status":"affected"},{"version":"1.7.13","status":"affected"},{"version":"1.7.14","status":"affected"},{"version":"1.7.15","status":"affected"},{"version":"1.7.16","status":"affected"},{"version":"1.7.17","status":"affected"},{"version":"1.7.18","status":"affected"},{"version":"1.7.19","status":"affected"}],"cpes":["cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*"]}],"references":["https://vuldb.com/vuln/401815","https://vuldb.com/vuln/401815/cti","https://vuldb.com/cve/CVE-2026-87933","https://vuldb.com/submit/911136","https://github.com/DaveGamble/cJSON/issues/1060","https://github.com/DaveGamble/cJSON/pull/1065","https://github.com/DaveGamble/cJSON/"],"weaknesses":["CWE-416","CWE-119"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/87xxx/CVE-2026-87933.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87933","state":"PUBLISHED","datePublished":"2026-09-10T00:15:08.473Z","dateUpdated":"2026-09-10T19:06:09.220Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-09T16:21:04.414Z"},"containers":{"cna":{"title":"DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free","descriptions":[{"lang":"en","value":"A vulnerability was found in DaveGamble cJSON up to 1.7.19. 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