Disclosure summary
The Realm implementations in Apache Tomcat versions 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 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
Source-reported weakness categories
CWE-203
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2016-0762
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| apache | tomcat | * {"versionStartIncluding":"8.5.0","versionEndIncluding":"8.5.4"} |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| apache | tomcat | 9.0.0 |
| canonical | ubuntu_linux | 16.04 |
| debian | debian_linux | 8.0 |
| redhat | jboss_enterprise_web_server | 3.0.0 |
| redhat | enterprise_linux_desktop | 7.0 |
| redhat | enterprise_linux_eus | 7.4 |
| redhat | enterprise_linux_eus | 7.5 |
| redhat | enterprise_linux_eus | 7.6 |
| redhat | enterprise_linux_eus | 7.7 |
| redhat | enterprise_linux_server | 7.0 |
| redhat | enterprise_linux_server_aus | 7.4 |
| redhat | enterprise_linux_server_aus | 7.6 |
| redhat | enterprise_linux_server_aus | 7.7 |
| redhat | enterprise_linux_server_tus | 7.6 |
| redhat | enterprise_linux_server_tus | 7.7 |
| redhat | enterprise_linux_workstation | 7.0 |
| netapp | oncommand_insight | - |
| netapp | oncommand_shift | - |
| netapp | snap_creator_framework | - |
| oracle | communications_diameter_signaling_router | * {"versionStartIncluding":"8.0.0","versionEndIncluding":"8.5.0"} |
| oracle | tekelec_platform_distribution | * {"versionStartIncluding":"7.4.0","versionEndIncluding":"7.7.1"} |
Original records & references
- NIST NVD record
- CVE Program record
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- security.netapp.com — Third Party Advisory
- usn.ubuntu.com — Third Party Advisory
- www.oracle.com — Patch, Third Party Advisory
- www.oracle.com — Patch, Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- security.netapp.com — Third Party Advisory
- usn.ubuntu.com — Third Party Advisory
- www.oracle.com — Patch, Third Party Advisory
- www.oracle.com — Patch, Third Party Advisory
PUBLISHED 2017-08-10T12:29:00-04:00
MODIFIED 2026-10-08T18:16:38-04:00
INGESTED 2026-10-10T20:50:18-04:00