MEDIUM

CVE-2018-11784

CVSS v3

4.3

MEDIUM

EPSS Score

97.7 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

org.apache.tomcat.embed:tomcat-embed-coreMavenfrom 9.0.0 · fixed in 9.0.12
apache-commons-collectionsAlmaLinux:8all versions · fixed in 3.2.2-10.module_el8.5.0+150+5f0dbea0
apache-commons-langAlmaLinux:8all versions · fixed in 2.6-21.module_el8.5.0+2577+9e95fe00
bea-stax-apiAlmaLinux:8all versions · fixed in 1.2.0-16.module_el8.5.0+2577+9e95fe00
glassfish-fastinfosetAlmaLinux:8all versions · fixed in 1.2.13-9.module_el8.5.0+2577+9e95fe00
glassfish-jaxb-apiAlmaLinux:8all versions · fixed in 2.2.12-8.module_el8.5.0+150+5f0dbea0
glassfish-jaxb-coreAlmaLinux:8all versions · fixed in 2.2.11-11.module_el8.5.0+2577+9e95fe00
glassfish-jaxb-txw2AlmaLinux:8all versions · fixed in 2.2.11-11.module_el8.5.0+150+5f0dbea0and 1 other package

16 more package ranges on OSV.dev

Vendor advisories

CVE-2018-11784 Red Hat Product Security226 products fixed · 8 known affected
tomcat: Open redirect in default servlet
jbossweb as a component of Red Hat JBoss Data Grid 6 · jbossweb as a component of Red Hat JBoss Data Virtualization 6 · jbossweb as a component of Red Hat JBoss Enterprise Application Platform 6
RHSA-2019:1529 Red Hat Product Security73 products fixed
Red Hat Security Advisory: pki-deps:10.6 security update
RHSA-2019:0485 Red Hat Product Security67 products fixed
Red Hat Security Advisory: tomcat security update
RHSA-2019:0131 Red Hat Product Security60 products fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 3.1 Service Pack 6 security and bug fix update
RHSA-2019:0130 Red Hat Product Security1 product fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 3.1 Service Pack 6 security and bug fix update
RHSA-2018:2868 Red Hat Product Security24 products fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 5.0 Service Pack 1 security and bug fix update

1 more advisory

Full record on NVD

Description

When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g. redirecting to '/foo/' when the user requested '/foo') a specially crafted URL could be used to cause the redirect to be generated to any URI of the attackers choice.

Technical details

Published: 2018-10-04
Exploit-DB: EDB-50118

Frequently asked questions

What is CVE-2018-11784?

Is CVE-2018-11784 actively exploited?

Active exploitation of CVE-2018-11784 has not been confirmed. Its EPSS score was 97.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-11784?

CVE-2018-11784 has a CVSS v3 base score of 4.3 (MEDIUM severity).

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