Cjson

This hub aggregates every CVE we track for Cjson, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.

Severity distribution

Monthly trend

The 15 most recently published vulnerabilities affecting Cjson.

• CVE-2025-57052cJSON 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 restri...9.8Sep 3, 2025
• CVE-2023-53154parse_string in cJSON before 1.7.18 has a heap-based buffer over-read via {"1":1, with no trailing newline if cJSON_ParseWithLength is called.2.9May 23, 2025
• CVE-2023-26819cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.2.9Apr 19, 2025
• CVE-2024-31755cJSON v1.7.17 was discovered to contain a segmentation violation, which can trigger through the second parameter of function cJSON_SetValuestring at cJSON.c.7.6Apr 26, 2024
• CVE-2023-50472cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_SetValuestring at cJSON.c.7.5Dec 14, 2023
• CVE-2023-50471cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_InsertItemInArray at cJSON.c.7.5Dec 14, 2023
• CVE-2021-32292An issue was discovered in json-c from 20200420 (post 0.14 unreleased code) through 0.15-20200726. A stack-buffer-overflow exists in the auxiliary sample program json_parse which is located in the ...9.8Aug 22, 2023
• CVE-2020-12762json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.7.8May 9, 2020
• CVE-2019-1010239DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cause denial of service. The component is: cJSON_Ge...7.5Jul 19, 2019
• CVE-2019-11835cJSON before 1.7.11 allows out-of-bounds access, related to multiline comments.9.8May 9, 2019
• CVE-2019-11834cJSON before 1.7.11 allows out-of-bounds access, related to \x00 in a string literal.9.8May 9, 2019
• CVE-2016-10749parse_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 \ character.9.8Apr 29, 2019
• CVE-2018-1000217Dave 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, corruption of data or even RCE. This attack appear t...9.8Aug 20, 2018
• CVE-2018-1000215Dave 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 appear to be exploitable via If the attacker ca...7.5Aug 20, 2018
• CVE-2018-1000216Dave 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. This attack appear to be exploitable via Attacke...8.8Aug 20, 2018