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Vulnerability record · CVE-2016-6796 · published 11 August 2017

CVE-2016-6796: Apache tomcat vulnerability

Apache · Tomcat

A malicious web application running on Apache Tomcat 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 was able to bypass a configured SecurityManager via manipulation of the configuration parameters for the JSP Servlet.

7.5 CVSS 3.1 High EPSS 8.3% · top 5.2%
7.5CVSS 3.1 base score, v2 5.0
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
15Affected product versions listed by NVD
62References
17 Jun 2026Last modified by NVD

Description

A malicious web application running on Apache Tomcat 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 was able to bypass a configured SecurityManager via manipulation of the configuration parameters for the JSP Servlet.

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

Affected products

15 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://rhn.redhat.com/errata/RHSA-2017-0457.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-1551.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3720 Third Party Advisory
http://www.securityfocus.com/bid/93944 Broken Link
http://www.securitytracker.com/id/1037141 Broken Link
http://www.securitytracker.com/id/1038757 Broken Link
https://access.redhat.com/errata/RHSA-2017:0455 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0456 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1548 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1549 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1550 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1552 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2247 Third Party Advisory
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/5a2105a56b2495ab70fa568f06925bd861f0d71ffab4fb38bb4fdc45%40%3Cannounce.tomcat.apach
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.or
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.or
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.or
https://security.netapp.com/advisory/ntap-20180605-0001/ Third Party Advisory
https://usn.ubuntu.com/4557-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0457.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-1551.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3720 Third Party Advisory
http://www.securityfocus.com/bid/93944 Broken Link
http://www.securitytracker.com/id/1037141 Broken Link
http://www.securitytracker.com/id/1038757 Broken Link
https://access.redhat.com/errata/RHSA-2017:0455 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0456 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1548 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-6796), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.