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TI-2016-00681 Aliases CVE-2016-0762GHSA-wxcp-f2c8-x6xv

Observable discrepancy in Apache Tomcat

Priority MEDIUM 43CWE-203Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 11 fixed, 10 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-203.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.07991 94th percentileScored 2026-11-07
Fix Partial org.apache.tomcat:tomcat (Maven): 9.0.0.M10, 8.5.5, 8.0.37 +2Red Hat: 4 advisoriesRed Hat: 11 fixed, 10 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Tomcat9.0.0.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; 6.0.0 to 6.0.45—No fix listedCNA
—org.apache.tomcat:tomcat (Maven)9.0.0M1 to before 9.0.0.M109.0.0.M10Patch availableGHSA-wxcp-f2c8-x6xv
—org.apache.tomcat:tomcat (Maven)8.5.0 to before 8.5.58.5.5Patch availableGHSA-wxcp-f2c8-x6xv
—org.apache.tomcat:tomcat (Maven)8.0.0.RC1 to before 8.0.378.0.37Patch availableGHSA-wxcp-f2c8-x6xv
—org.apache.tomcat:tomcat (Maven)7.0.0 to before 7.0.727.0.72Patch availableGHSA-wxcp-f2c8-x6xv
—org.apache.tomcat:tomcat (Maven)6.0.0 to before 6.0.466.0.46Patch availableGHSA-wxcp-f2c8-x6xv
  • Apache Tomcat VendorApache Affected 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; 6.0.0 to 6.0.45 Fixed in — No fix listed CNA
  • org.apache.tomcat:tomcat (Maven) Vendor— Affected 9.0.0M1 to before 9.0.0.M10 Fixed in 9.0.0.M10 Patch available GHSA-wxcp-f2c8-x6xv
  • org.apache.tomcat:tomcat (Maven) Vendor— Affected 8.5.0 to before 8.5.5 Fixed in 8.5.5 Patch available GHSA-wxcp-f2c8-x6xv
  • org.apache.tomcat:tomcat (Maven) Vendor— Affected 8.0.0.RC1 to before 8.0.37 Fixed in 8.0.37 Patch available GHSA-wxcp-f2c8-x6xv
  • org.apache.tomcat:tomcat (Maven) Vendor— Affected 7.0.0 to before 7.0.72 Fixed in 7.0.72 Patch available GHSA-wxcp-f2c8-x6xv
  • org.apache.tomcat:tomcat (Maven) Vendor— Affected 6.0.0 to before 6.0.46 Fixed in 6.0.46 Patch available GHSA-wxcp-f2c8-x6xv

CPE configurations NVD · 30

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*6.0.0 – 6.0.45; 7.0.0 – 7.0.70; 8.0 – 8.0.36; 8.5.0 – 8.5.4VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*9.0.0 milestone1VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*9.0.0 milestone2VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*9.0.0 milestone3VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*9.0.0 milestone4VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*9.0.0 milestone5VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*9.0.0 milestone6VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*9.0.0 milestone7VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*9.0.0 milestone8VulnerableApache
cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*9.0.0 milestone9VulnerableApache
  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Versions 6.0.0 – 6.0.45; 7.0.0 – 7.0.70; 8.0 – 8.0.36; 8.5.0 – 8.5.4 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* Versions 9.0.0 milestone1 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:* Versions 9.0.0 milestone2 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:* Versions 9.0.0 milestone3 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:* Versions 9.0.0 milestone4 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:* Versions 9.0.0 milestone5 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:* Versions 9.0.0 milestone6 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:* Versions 9.0.0 milestone7 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:* Versions 9.0.0 milestone8 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:* Versions 9.0.0 milestone9 Vulnerable ·Apache
Show 20 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:a:redhat:jboss_enterprise_web_server:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:oncommand_shift:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*8.0.0 – 8.5.0VulnerableOracle
cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*7.4.0 – 7.7.1VulnerableOracle
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:a:redhat:jboss_enterprise_web_server:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:oncommand_shift:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* Versions 8.0.0 – 8.5.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:* Versions 7.4.0 – 7.7.1 Vulnerable ·Oracle

Remediation

  • Fix · GHSA-wxcp-f2c8-x6xv org.apache.tomcat:tomcat (Maven) Fixed in 9.0.0.M10 Advisory →
  • Fix · GHSA-wxcp-f2c8-x6xv org.apache.tomcat:tomcat (Maven) Fixed in 8.5.5 Advisory →
  • Fix · GHSA-wxcp-f2c8-x6xv org.apache.tomcat:tomcat (Maven) Fixed in 8.0.37 Advisory →
  • Fix · GHSA-wxcp-f2c8-x6xv org.apache.tomcat:tomcat (Maven) Fixed in 7.0.72 Advisory →
  • Fix · GHSA-wxcp-f2c8-x6xv org.apache.tomcat:tomcat (Maven) Fixed in 6.0.46 Advisory →

Red Hat 4 advisories

  • RHSA-2017:2247 Released 2017-08-01 · Red Hat rating Low
    tomcat security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) tomcat-7.0.76-2.el7, tomcat-servlet-3.0-api-7.0.76-2.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) tomcat-7.0.76-2.el7, tomcat-admin-webapps-7.0.76-2.el7, tomcat-docs-webapp-7.0.76-2.el7 +6
    • Red Hat Enterprise Linux ComputeNode (v. 7) tomcat-7.0.76-2.el7, tomcat-servlet-3.0-api-7.0.76-2.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) tomcat-7.0.76-2.el7, tomcat-admin-webapps-7.0.76-2.el7, tomcat-docs-webapp-7.0.76-2.el7 +6
    • Red Hat Enterprise Linux Server (v. 7) tomcat-7.0.76-2.el7, tomcat-admin-webapps-7.0.76-2.el7, tomcat-el-2.2-api-7.0.76-2.el7 +4
    • Red Hat Enterprise Linux Server Optional (v. 7) tomcat-7.0.76-2.el7, tomcat-admin-webapps-7.0.76-2.el7, tomcat-docs-webapp-7.0.76-2.el7 +6
    • Red Hat Enterprise Linux Workstation (v. 7) tomcat-7.0.76-2.el7, tomcat-admin-webapps-7.0.76-2.el7, tomcat-el-2.2-api-7.0.76-2.el7 +4
    • Red Hat Enterprise Linux Workstation Optional (v. 7) tomcat-docs-webapp-7.0.76-2.el7, tomcat-javadoc-7.0.76-2.el7, tomcat-jsvc-7.0.76-2.el7
  • RHSA-2017:0455 Released 2017-03-07 · Red Hat rating Important
    Red Hat JBoss Web Server 3.1.0 security and enhancement update
    • Red Hat JBoss Web Server 3.1 for RHEL 6 hibernate4-c3p0-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6, hibernate4-core-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6, hibernate4-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6 +34
  • RHSA-2017:0456 Released 2017-03-07 · Red Hat rating Important
    Red Hat JBoss Web Server 3.1.0 security and enhancement update
    • Red Hat JBoss Web Server 3.1 for RHEL 7 hibernate4-c3p0-eap6-4.2.23-1.Final_redhat_1.1.ep6.el7, hibernate4-core-eap6-4.2.23-1.Final_redhat_1.1.ep6.el7, hibernate4-eap6-4.2.23-1.Final_redhat_1.1.ep6.el7 +34
Show 1 more Red Hat advisories
  • RHSA-2017:0457 Released 2017-03-07 · Red Hat rating Important
    Red Hat JBoss Web Server security and enhancement update
    • Red Hat JBoss Web Server 3.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Apache Tomcat — DSA-3720

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2016-04337 Authentication bypass in Apache TomcatPriority MEDIUM 60
    • TI-2016-05838 Incorrect authorization in Apache TomcatPriority MEDIUM 50
    • TI-2016-05837 A malicious web application running on Apache Tomcat 9.0.0.M1 to 9.0.0.M9, 8.5.0 to…Priority MEDIUM 50
    Show all 5 records → Advisory →
  • Advisory ·

    Apache Tomcat — RHSA-2017:2247

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2016-04337 Authentication bypass in Apache TomcatPriority MEDIUM 60
    • TI-2016-05838 Incorrect authorization in Apache TomcatPriority MEDIUM 50
    • TI-2016-05837 A malicious web application running on Apache Tomcat 9.0.0.M1 to 9.0.0.M9, 8.5.0 to…Priority MEDIUM 50
    Show all 5 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat JBoss BRMS 5AffectedNo fix planned: Out of support scope
Red Hat JBoss Data Grid 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Data Virtualization 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Web Server 3AffectedNo fix yet: Fix deferred
Red Hat JBoss Fuse 6AffectedNo fix planned: Will not fix
Red Hat JBoss Fuse Service Works 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Operations Network 3AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:2247
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:2247
Red Hat JBoss Web Server 3.1Fixed RHSA-2017:0457
Red Hat JBoss Web Server 3.1 for RHEL 6Fixed RHSA-2017:0455
Red Hat JBoss Web Server 3.1 for RHEL 7Fixed RHSA-2017:0456
Not affected: 2 products
  • Red Hat JBoss Enterprise Application Platform 5
  • Red Hat JBoss Enterprise Application Platform 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-0762
  2. 2026-10-03 Alias added: GHSA-wxcp-f2c8-x6xv
  3. 2026-10-08 CISA SSVC decision points changed
  4. 2026-10-09 Priority changed: LOW → MEDIUM

References

Patch 2

Advisory 8

Other 33

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-01862 Improper privilege management in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
  • TI-2016-07192 Improper access control in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09342 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
  • TI-2017-09340 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
  • TI-2026-26741 Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor KEVCVSS 3.1HIGH 7.5
See all 273 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences