CVE-2018-1048

Name: CVE-2018-1048
Creator: NVD / NIST
Published: 2018-01-24T23:29:00.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.60%

Last modified Jun 17, 2026

CVE-2018-1048 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.. EPSS estimates a 1.60% chance of exploitation in the next 30 days.

Description

It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.60%

72.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Jboss Enterprise Application Platform	7.1.0

References

https://access.redhat.com/errata/RHSA-2018:0478Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0479Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0480Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0481Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1534343Issue Tracking, Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0478Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0479Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0480Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0481Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1534343Issue Tracking, Vendor Advisory

Timeline

Published: Jan 24, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1048?

How severe is CVE-2018-1048?

CVE-2018-1048 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.60% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1048?

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-2018-1048?

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

Scan your code now

Source: NVD / NIST