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CVE-2016-5388

Published: Jul 19, 2016Updated: May 6, 2026 Sources: CVE List NVD GHSACWE-284
NVD MITRE
8.1CVSSHIGH
EPSS Score
50.9%
Top 1.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Apache Tomcat 7.x through 7.0.70 and 8.x through 8.5.4, when the CGI Servlet is enabled, follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "A mitigation is planned for future releases of Tomcat, tracked as CVE-2016-5388"; in other words, this is not a CVE ID for a vulnerability.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-284

Affected Products

n/an/a
org.apache.tomcat:tomcat-catalinaMavenOSS Libraries
enterprise linux desktopredhat
On-premOS
Operating Systems / linux-distro
enterprise linux hpc noderedhat
On-prem
Operating Systems / linux-distro
enterprise linux hpc node eusredhat
On-premOS
Operating Systems / linux-distro
mavenpackage-ecosystemOSS Libraries
redhatcommercialUSOperating Systemsaka red hat
and 8 more affected products View all →

Exploitability

Official Patch Available

References

https://access.redhat.com/errata/RHSA-2016:1635
access.redhat.com
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
h20566.www2.hpe.com
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05324759
h20566.www2.hpe.com
and 43 more references View all →

Timeline

Published
Jul 19, 2016
Last Updated
May 6, 2026

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