CVE-2016-8747

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-03-14 · updated 2026-06-17
Weakness: CWE-200

Description

An information disclosure issue was discovered in Apache Tomcat 8.5.7 to 8.5.9 and 9.0.0.M11 to 9.0.0.M15 in reverse-proxy configurations. Http11InputBuffer.java allows remote attackers to read data that was intended to be associated with a different request.

Affected products

Apache Tomcat: from 8.5.7 before 8.5.10; 9.0.0-milestone11, 9.0.0-milestone12, 9.0.0-milestone13, 9.0.0-milestone14, 9.0.0-milestone15 — fixed in 8.5.10
OnCommand Insight: all versions
NetApp Oncommand Shift: all versions

How to fix

Upgrade to a fixed version: Apache Tomcat 8.5.10. Check the vendor advisory for mitigations.

References

http://svn.apache.org/viewvc?view=revision&revision=1774161
http://svn.apache.org/viewvc?view=revision&revision=1774166
http://tomcat.apache.org/security-8.html
http://tomcat.apache.org/security-9.html
http://www.securityfocus.com/bid/96895
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E
https://security.netapp.com/advisory/ntap-20180614-0002/

Get alerted when CVE-2016-8747 or the next vulnerability affects your stack