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Fencer Vulns
high 8.1

CVE-2016-5388 in the critical feed json

Improper Access Control in Apache Tomcat

published 2016-07-19 10 y ago modified 2026-10-15 24 d ago also GHSA-v646-rx6w-r3qq , EUVD-2022-5290

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
50.9%
EPSS 50.9% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.apache.tomcat:tomcat-catalina 7.0.72, 8.5.5
  • tomcat7 Ubuntu 14.04 LTS 7.0.52-1ubuntu0.8
  • tomcat8 Ubuntu 16.04 LTS 8.0.32-1ubuntu1.3
  • tomcat7 Ubuntu Pro 16.04 LTS 7.0.68-1ubuntu0.4+esm1

ubuntu advisories UBUNTU-CVE-2016-5388

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • tomcat6 RHEL 6 6.0.24-98.el6_8
  • tomcat6-lib RHEL 6 6.0.24-98.el6_8
  • tomcat6-javadoc RHEL 6 6.0.24-98.el6_8
  • tomcat6-webapps RHEL 6 6.0.24-98.el6_8
  • tomcat6-el-2.1-api RHEL 6 6.0.24-98.el6_8
  • tomcat6-docs-webapp RHEL 6 6.0.24-98.el6_8
  • tomcat6-jsp-2.1-api RHEL 6 6.0.24-98.el6_8
  • tomcat6-admin-webapps RHEL 6 6.0.24-98.el6_8

red hat advisories RHSA-2016:2045RHSA-2016:1636RHSA-2016:1635RHSA-2016:2046

  • tomcat6 SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +2 more 6.0.53-0.56.1
  • tomcat6 SLES for SAP 11 SP4, SLES 11 SP4 6.0.45-0.53.2
  • tomcat SLES for SAP 12 SP1, SLES 12 SP1 8.0.32-8.7
  • tomcat SLES for SAP 12, SLES 12-LTSS 7.0.78-7.13.4

suse advisories SUSE-SU-2017:1660-1SUSE-SU-2017:1632-1SUSE-SU-2016:2229-1SUSE-SU-2016:2188-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-5388 updated cvss 3.5

Tomcat: CGI sets environmental variable based on user supplied Proxy request header

  • Red Hat JBoss Enterprise Application Platform 5 jbossas jbossas
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform 6 tomcat
    affected: no fix available
  • Red Hat JBoss Enterprise Web Server 1 tomcat
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Web Server 2 tomcat7 tomcat7, tomcat8 tomcat8 Red Hat JBoss Enterprise Web Server 3 tomcat6
    affected: no fix available
  • Red Hat Enterprise Linux 5 tomcat5
    under investigation
  • Red Hat Enterprise Linux Client (v. 7) tomcat 7.0.54-8.el7_2, tomcat-servlet-3.0-api 7.0.54-8.el7_2 Red Hat Enterprise Linux Client Optional (v. 7) tomcat 7.0.54-8.el7_2, tomcat-lib 7.0.54-8.el7_2, tomcat-jsvc 7.0.54-8.el7_2, tomcat-javadoc 7.0.54-8.el7_2, tomcat-webapps 7.0.54-8.el7_2, tomcat-el-2.2-api 7.0.54-8.el7_2, +3 more Red Hat Enterprise Linux ComputeNode (v. 7) tomcat 7.0.54-8.el7_2, tomcat-servlet-3.0-api 7.0.54-8.el7_2 Red Hat Enterprise Linux ComputeNode Optional (v. 7) tomcat 7.0.54-8.el7_2, tomcat-lib 7.0.54-8.el7_2, tomcat-jsvc 7.0.54-8.el7_2, tomcat-javadoc 7.0.54-8.el7_2, tomcat-webapps 7.0.54-8.el7_2, tomcat-el-2.2-api 7.0.54-8.el7_2, +3 more
    fixed: vendor fix RHSA-2016:2046
  • Red Hat Enterprise Linux Desktop (v. 6) tomcat6 6.0.24-98.el6_8, tomcat6-lib 6.0.24-98.el6_8, tomcat6-javadoc 6.0.24-98.el6_8, tomcat6-webapps 6.0.24-98.el6_8, tomcat6-el-2.1-api 6.0.24-98.el6_8, tomcat6-docs-webapp 6.0.24-98.el6_8, +3 more Red Hat Enterprise Linux HPC Node (v. 6) tomcat6 6.0.24-98.el6_8, tomcat6-lib 6.0.24-98.el6_8, tomcat6-javadoc 6.0.24-98.el6_8, tomcat6-webapps 6.0.24-98.el6_8, tomcat6-el-2.1-api 6.0.24-98.el6_8, tomcat6-docs-webapp 6.0.24-98.el6_8, +3 more Red Hat Enterprise Linux Server (v. 6) tomcat6 6.0.24-98.el6_8, tomcat6-lib 6.0.24-98.el6_8, tomcat6-javadoc 6.0.24-98.el6_8, tomcat6-webapps 6.0.24-98.el6_8, tomcat6-el-2.1-api 6.0.24-98.el6_8, tomcat6-docs-webapp 6.0.24-98.el6_8, +3 more
    fixed: vendor fix RHSA-2016:2045
  • Red Hat Enterprise Linux Server (v. 7) tomcat 7.0.54-8.el7_2, tomcat-lib 7.0.54-8.el7_2, tomcat-webapps 7.0.54-8.el7_2, tomcat-el-2.2-api 7.0.54-8.el7_2, tomcat-jsp-2.2-api 7.0.54-8.el7_2, tomcat-admin-webapps 7.0.54-8.el7_2, +1 more Red Hat Enterprise Linux Server Optional (v. 7) tomcat 7.0.54-8.el7_2, tomcat-lib 7.0.54-8.el7_2, tomcat-jsvc 7.0.54-8.el7_2, tomcat-javadoc 7.0.54-8.el7_2, tomcat-webapps 7.0.54-8.el7_2, tomcat-el-2.2-api 7.0.54-8.el7_2, +3 more
    fixed: vendor fix RHSA-2016:2046
show 5 more
  • Red Hat Enterprise Linux Workstation (v. 6) tomcat6 6.0.24-98.el6_8, tomcat6-lib 6.0.24-98.el6_8, tomcat6-javadoc 6.0.24-98.el6_8, tomcat6-webapps 6.0.24-98.el6_8, tomcat6-el-2.1-api 6.0.24-98.el6_8, tomcat6-docs-webapp 6.0.24-98.el6_8, +3 more
    fixed: vendor fix RHSA-2016:2045
  • Red Hat Enterprise Linux Workstation (v. 7) tomcat 7.0.54-8.el7_2, tomcat-lib 7.0.54-8.el7_2, tomcat-webapps 7.0.54-8.el7_2, tomcat-el-2.2-api 7.0.54-8.el7_2, tomcat-jsp-2.2-api 7.0.54-8.el7_2, tomcat-admin-webapps 7.0.54-8.el7_2, +1 more Red Hat Enterprise Linux Workstation Optional (v. 7) tomcat-jsvc 7.0.54-8.el7_2, tomcat-javadoc 7.0.54-8.el7_2, tomcat-docs-webapp 7.0.54-8.el7_2
    fixed: vendor fix RHSA-2016:2046
  • Red Hat JBoss Web Server 3.0
    fixed: vendor fix RHSA-2016:1624
  • Red Hat JBoss Web Server 3.0 for RHEL 6 httpd24 2.4.6-62.ep7.el6, mod_ssl24 2.4.6-62.ep7.el6, mod_ldap24 2.4.6-62.ep7.el6, httpd24-tools 2.4.6-62.ep7.el6, mod_session24 2.4.6-62.ep7.el6, httpd24-manual 2.4.6-62.ep7.el6, +21 more
    fixed: vendor fix RHSA-2016:1636
  • Red Hat JBoss Web Server 3.0 for RHEL 7 httpd24 2.4.6-62.ep7.el7, mod_ssl24 2.4.6-62.ep7.el7, mod_ldap24 2.4.6-62.ep7.el7, httpd24-tools 2.4.6-62.ep7.el7, mod_session24 2.4.6-62.ep7.el7, httpd24-manual 2.4.6-62.ep7.el7, +21 more
    fixed: vendor fix RHSA-2016:1635

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
24 d ago

Exploit prediction

50.90% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P
GitHub 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.tomcat:tomcat-catalina
>=7.0.0, <7.0.72
>=8.0.0, <8.5.5
7.0.72
8.5.5

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.