Cjson
21 CVEs tracked. None of them is in CISA KEV.
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.
Cjson CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 1 |
| 2025-05 | 1 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 1 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 4 |
| 2026-08 | 1 |
| 2026-09 | 1 |
Severity
How the 21 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical6
- High11
- Medium2
- Low2
Latest CVEs
The 15 most recently published vulnerabilities affecting Cjson.
- CVE-2026-87933DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free7.3
- CVE-2026-29036cJSON 1.7.19 Wrong-Key Modification via JSON Pointer Escape Decoding7.5
- CVE-2026-67217cJSON JSON Patch Non-Atomic Application Destroys Data Before Validation5.3
- CVE-2026-67216cJSON cJSON_Compare Exponential Complexity Denial of Service5.9
- CVE-2026-67215cJSON JSON Patch copy/add Uncontrolled Recursion Stack Exhaustion7.5
- CVE-2026-16554Integer Overflow Leading to Heap Buffer Overflow in cJSON7.8
- 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...9.8
- 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.2.9
- CVE-2023-26819cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.2.9
- 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.7.6
- CVE-2023-50472cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_SetValuestring at cJSON.c.7.5
- CVE-2023-50471cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_InsertItemInArray at cJSON.c.7.5
- 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 ...9.8
- 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.7.8
- 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...7.5
Product grouping is registry-driven, with AI assist and human review. How it works