# FASTJSON Includes Functionality from Untrusted Control Sphere

Advisory record · `GHSA-jm7w-5684-pvh8`

- **Identifiers:** `GHSA-jm7w-5684-pvh8` · `CVE-2025-70974`
- **State:** Confirmed
- **Severity:** CVSS 10.0 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-829](https://cwe.mitre.org/data/definitions/829.html)
- **Tags:** [CWE-829](https://agentprime.io/advisories/tag/cwe-829.md)
- **Published:** 9 Jan 2026
- **Updated:** 5 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 9 Jan 2026, 09:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 10.0: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `com.alibaba:fastjson` (Maven): affected `<1.2.48`; fixed in `1.2.48`

## 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

- 10.0 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`, from CNA (mitre)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0075, the 55th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:16 UTC: First seen by agentprime
- 31 Oct 2026, 14:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-jm7w-5684-pvh8)

## Sources

- [GitHub Advisory Database: GHSA-jm7w-5684-pvh8](https://github.com/advisories/GHSA-jm7w-5684-pvh8)
- [OSV: GHSA-jm7w-5684-pvh8](https://osv.dev/vulnerability/GHSA-jm7w-5684-pvh8)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-70974>
- <https://access.redhat.com/security/cve/CVE-2025-70974>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2428203>
- <https://github.com/alibaba/fastjson>
- <https://github.com/alibaba/fastjson/compare/1.2.47...1.2.48>
- <https://github.com/vulhub/vulhub/tree/master/fastjson/1.2.47-rce>
- <https://web.archive.org/web/20220121055754/https://cert.360.cn/warning/detail?id=7240aeab581c6dc2c9c5350756079955>
- <https://www.cloudsek.com/blog/androxgh0st-continues-exploitation-operators-compromise-a-us-university-for-hosting-c2-logger>
- <https://www.cnvd.org.cn/flaw/show/CNVD-2019-22238>
- <https://www.freebuf.com/vuls/208339.html>
- <https://www.seebug.org/vuldb/ssvid-98020>

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-jm7w-5684-pvh8>, 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-jm7w-5684-pvh8/>. Everything for agents: <https://agentprime.io/llms.txt>.