# Uninitialized read in Nokogiri gem

Advisory record · `GHSA-4hm9-844j-jmxp`

- **Identifiers:** `GHSA-4hm9-844j-jmxp` · `CVE-2019-13117`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-908](https://cwe.mitre.org/data/definitions/908.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md)
- **Published:** 24 May 2022
- **Updated:** 10 Jun 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 May 2022, 16:49 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `nokogiri` (RubyGems): affected `<1.10.5`; fixed in `1.10.5`

## 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

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.065, the 93rd percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 24 May 2022. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-4hm9-844j-jmxp](https://github.com/advisories/GHSA-4hm9-844j-jmxp)
- [OSV: GHSA-4hm9-844j-jmxp](https://osv.dev/vulnerability/GHSA-4hm9-844j-jmxp)
- <https://nvd.nist.gov/vuln/detail/CVE-2019-13117>
- <https://github.com/sparklemotion/nokogiri/issues/1943>
- <https://www.oracle.com/security-alerts/cpujan2020.html>
- <https://usn.ubuntu.com/4164-1>
- <https://security.netapp.com/advisory/ntap-20200122-0003>
- <https://security.netapp.com/advisory/ntap-20190806-0004>
- <https://oss-fuzz.com/testcase-detail/5631739747106816>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IOYJKXPQCUNBMMQJWYXOR6QRUJZHEDRZ>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IOYJKXPQCUNBMMQJWYXOR6QRUJZHEDRZ>
- <https://lists.debian.org/debian-lts-announce/2019/07/msg00020.html>
- <https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E>
- <https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E>

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-4hm9-844j-jmxp>, 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-4hm9-844j-jmxp/>. Everything for agents: <https://agentprime.io/llms.txt>.