CVE-2018-1067

Name: CVE-2018-1067
Creator: NVD / NIST
Published: 2018-05-21T17:29:00.917+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.76%

Last modified Jun 17, 2026

CVE-2018-1067 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 1.76% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.76%

75.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Undertow	< 1.4.25
Redhat	Undertow	>= 2.0.0, < 2.0.5
Redhat	Jboss Enterprise Application Platform	7.1
Redhat	Virtualization Host	4.0

References

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

Timeline

Published: May 21, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1067?

How severe is CVE-2018-1067?

CVE-2018-1067 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1067?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1067?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST