PatchTheCVECVE-2023-1370: [Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib. When reachi
CVE-2023-1370 is a high-severity flaw (CVSS 7.5) affecting json-smart. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
[Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib. When reaching a ‘[‘ or ‘{‘ character in the JSON input, the code parses an array or an object respectively. It was discovered that the code does not have any limit to the nesting of such arrays or objects. Since the parsing of nested arrays and objects is done recursively, nesting too many of them can cause a stack exhaustion (stack overflow) and c
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 34%) |
| CISA exploited list | No |
| Weakness | CWE-674 |
| Published | 2023-03-22 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-1370?
json-smart: upgrade to 2.4.9. Exact commands for each OS are on this page.
Is CVE-2023-1370 being exploited?
CVE-2023-1370 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-1370 affect?
CVE-2023-1370 affects json-smart. Severity is high (CVSS 7.5). [Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib. When reaching a ‘[‘ or ‘{‘ character in the JSON input, the code parses an array or an object respectively. It was discovered that the code
How urgent is CVE-2023-1370?
Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action