Vulnerability index

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Cjson HIGH 7.5
CVE-2026-67215

cJSON through 1.7.19 is vulnerable to uncontrolled recursion leading to stack exhaustion when an untrusted RFC 6902 JSON Patch is applied via cJSONUt…

Fix: after 1.7.19
Fix from $1,950 2026-07-29
Cjson HIGH 7.5
CVE-2026-67216

cJSON through 1.7.19 contains an inefficient algorithmic complexity flaw in cJSON_Compare(). When comparing objects, the function recurses into each …

Fix: after 1.7.19
Fix from $1,950 2026-07-29
Cjson MEDIUM 5.3
CVE-2026-67217

cJSON through 1.7.19 applies RFC 6902 JSON Patch operations non-atomically in apply_patch() in cJSON_Utils.c. For a replace operation that is missing…

Fix: after 1.7.19
Fix from $1,600 2026-07-29
Cjson CRITICAL 9.8
CVE-2025-57052

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 t…

Fix: after 1.7.18
Fix from $2,300 2025-09-03
Cjson HIGH 7.5
CVE-2023-50471

cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_InsertItemInArray at cJSON.c.

Patch available
Fix from $1,950 2023-12-14
Cjson HIGH 7.5
CVE-2023-50472

cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_SetValuestring at cJSON.c.

Patch available
Fix from $1,950 2023-12-14
Cjson HIGH 7.5
CVE-2019-1010239

DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cau…

Fix: 18.1.3.1.0+
Fix from $1,950 2019-07-19
Cjson CRITICAL 9.8
CVE-2019-11834

cJSON before 1.7.11 allows out-of-bounds access, related to \x00 in a string literal.

Fix: 1.7.11 / 18.1.3.1.0+
Fix from $2,300 2019-05-09
Cjson CRITICAL 9.8
CVE-2019-11835

cJSON before 1.7.11 allows out-of-bounds access, related to multiline comments.

Fix: 1.7.11 / 18.1.3.1.0+
Fix from $2,300 2019-05-09
Cjson CRITICAL 9.8
CVE-2016-10749

parse_string in cJSON.c in cJSON before 2016-10-02 has a buffer over-read, as demonstrated by a string that begins with a " character and ends with a…

Fix: 0.0.0+
Fix from $2,300 2019-04-29
Cjson CRITICAL 9.8
CVE-2018-1000217

Dave Gamble cJSON version 1.7.3 and earlier contains a CWE-416: Use After Free vulnerability in cJSON library that can result in Possible crash, corr…

Fix: 1.7.4+
Fix from $2,300 2018-08-20
Cjson HIGH 8.8
CVE-2018-1000216

Dave Gamble cJSON version 1.7.2 and earlier contains a CWE-415: Double Free vulnerability in cJSON library that can result in Possible crash or RCE. …

Fix: 1.7.3+
Fix from $1,950 2018-08-20
Cjson HIGH 7.5
CVE-2018-1000215

Dave Gamble cJSON version 1.7.6 and earlier contains a CWE-772 vulnerability in cJSON library that can result in Denial of Service (DoS). This attack…

Fix: after 1.7.6
Fix from $1,950 2018-08-20