# Java: DoS Vulnerability in JSON-JAVA

Advisory record · `GHSA-4jq9-2xhw-jpx7`

- **Identifiers:** `GHSA-4jq9-2xhw-jpx7` · `CVE-2023-5072`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **Weakness (CWE):** [CWE-358](https://cwe.mitre.org/data/definitions/358.html) · [CWE-770](https://cwe.mitre.org/data/definitions/770.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md) · [CWE-358](https://agentprime.io/advisories/tag/cwe-358.md)
- **Published:** 14 Nov 2023
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 14 Nov 2023, 22:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.json:json` (Maven): affected `<20231013`; fixed in `20231013`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Maven package org.json:json versions before 20231013 are vulnerable to a denial of service. A specially crafted input string of modest size can cause the parser to consume unbounded memory and crash with an out-of-memory error. The advisory does not describe the attacker's access requirements. Upgrade to version 20231013 or later.

Written 2 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (Google)

- **CISA KEV:** Not listed.
- **EPSS:** 0.017, the 77th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:18 UTC: First seen by agentprime
- 31 Oct 2026, 14:18 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-4jq9-2xhw-jpx7)

## Sources

- [GitHub Advisory Database: GHSA-4jq9-2xhw-jpx7](https://github.com/advisories/GHSA-4jq9-2xhw-jpx7)
- [OSV: GHSA-4jq9-2xhw-jpx7](https://osv.dev/vulnerability/GHSA-4jq9-2xhw-jpx7)
- <https://github.com/google/security-research/security/advisories/GHSA-4jq9-2xhw-jpx7>
- <https://nvd.nist.gov/vuln/detail/CVE-2023-5072>
- <https://github.com/stleary/JSON-java/issues/758>
- <https://github.com/stleary/JSON-java/issues/771>
- <https://github.com/stleary/JSON-java/pull/759>
- <https://github.com/stleary/JSON-java/commit/60662e2f8384d3449822a3a1179bfe8de67b55bb>
- <https://github.com/stleary/JSON-java>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-4jq9-2xhw-jpx7>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-4jq9-2xhw-jpx7/>. Everything for agents: <https://agentprime.io/llms.txt>.