# Duplicate Advisory: jackson-core: Async parser maxNumberLength bypass via chunked digit accumulation (incomplete fix for GHSA-72hv-8253-57qq)

Advisory record · `GHSA-642r-3gj9-2pj5` · Withdrawn

- **Identifiers:** `GHSA-642r-3gj9-2pj5`
- **State:** Withdrawn
- **Severity:** CVSS 4.0, no score published
- **Critical:** No
- **Weakness (CWE):** [CWE-770](https://cwe.mitre.org/data/definitions/770.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Published:** 4 Aug 2026
- **Updated:** 2 Oct 2026
- **Reviewed by a person:** No

**Withdrawn.** The GitHub Advisory Database withdrew this advisory on 2 Oct 2026. The record stays here, marked withdrawn.

Published by the GitHub Advisory Database at 4 Aug 2026, 15:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `tools.jackson.core:jackson-core` (Maven): affected `>=3.0.0`; no fixed version yet

## 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

- Score not published, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** No score.

## 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-642r-3gj9-2pj5)

## Sources

- [GitHub Advisory Database: GHSA-642r-3gj9-2pj5](https://github.com/advisories/GHSA-642r-3gj9-2pj5)
- [OSV: GHSA-642r-3gj9-2pj5](https://osv.dev/vulnerability/GHSA-642r-3gj9-2pj5)
- <https://github.com/FasterXML/jackson-core/security/advisories/GHSA-r7wm-3cxj-wff9>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-68494>
- <https://github.com/FasterXML/jackson-core/pull/1611>
- <https://github.com/FasterXML/jackson-core/commit/050b429804dce2a7e08f0be1b0b4c3d040fdb9cd>
- <https://github.com/FasterXML/jackson-core/commit/4cdd529749da396cc7edf6d4a2aad41d47902641>
- <https://github.com/FasterXML/jackson-core/commit/c5941e5aae7fd5aeac55d66933cfb82b9aabeef8>
- <https://github.com/advisories/GHSA-72hv-8253-57qq>
- <https://www.cve.org/CVERecord?id=CVE-2026-18401>

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-642r-3gj9-2pj5>, 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-642r-3gj9-2pj5/>. Everything for agents: <https://agentprime.io/llms.txt>.