# libxml as used in Nokogiri has an infinite loop in a certain end-of-file situation

Advisory record · `GHSA-7553-jr98-vx47`

- **Identifiers:** `GHSA-7553-jr98-vx47` · `CVE-2020-7595`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **Weakness (CWE):** [CWE-835](https://cwe.mitre.org/data/definitions/835.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Published:** 24 Feb 2020
- **Updated:** 8 Mar 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Feb 2020, 19:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `nokogiri` (RubyGems): affected `<1.10.8`; fixed in `1.10.8`

## 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 GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.078, the 94th 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 Feb 2020. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-7553-jr98-vx47](https://github.com/advisories/GHSA-7553-jr98-vx47)
- [OSV: GHSA-7553-jr98-vx47](https://osv.dev/vulnerability/GHSA-7553-jr98-vx47)
- <https://nvd.nist.gov/vuln/detail/CVE-2020-7595>
- <https://github.com/sparklemotion/nokogiri/issues/1992>
- <https://www.oracle.com/security-alerts/cpuoct2021.html>
- <https://www.oracle.com/security-alerts/cpujul2022.html>
- <https://www.oracle.com/security-alerts/cpujul2020.html>
- <https://www.oracle.com/security-alerts/cpuapr2022.html>
- <https://usn.ubuntu.com/4274-1>
- <https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08>
- <https://security.netapp.com/advisory/ntap-20200702-0005>
- <https://security.gentoo.org/glsa/202010-04>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI>

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-7553-jr98-vx47>, 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-7553-jr98-vx47/>. Everything for agents: <https://agentprime.io/llms.txt>.