CVE-2011-1184

Authentication Bypass in Apache Tomcat

5.0 MediumFix available

CVE-2011-1184 is a medium vulnerability (CVSS 5.0) in Apache Tomcat, published January 14, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.24%, the 94th percentile. Fixed in org.apache.tomcat:tomcat 5.5.34.

The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 does not have the expected countermeasures against replay attacks, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests, related to lack of checking of nonce (aka server nonce) and nc (aka nonce-count or client nonce count) values.

Exploit likelihood

8.24%Up 0.9 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2011-1184
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-264
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-1184
Updated: 2026-11-02

EUVDEUVD-2022-4937 No score

Record: EUVD-2022-4937
Updated: 2026-11-03

GitHub AdvisoriesGHSA-q9xf-jwr4-v445 No score

Authentication Bypass in Apache Tomcat

Record: GHSA-q9xf-jwr4-v445
Updated: 2026-11-02

OSVGHSA-q9xf-jwr4-v445 No score

Authentication Bypass in Apache Tomcat

Record: GHSA-q9xf-jwr4-v445
Updated: 2026-11-02

Affected products

apache tomcat

Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.tomcat:tomcat` Maven	5.5.0 up to 5.5.34	5.5.34
`org.apache.tomcat:tomcat` Maven	6.0.0 up to 6.0.33	6.0.33
`org.apache.tomcat:tomcat` Maven	7.0.0 up to 7.0.12	7.0.12
`tomcat6` Debian:6.0	before 6.0.35-1+squeeze2, plus listed versions 6.0.28-106.0.28-96.0.28-9+squeeze16.0.32-16.0.32-2 Show 7 moreShow less 6.0.32-36.0.32-46.0.32-56.0.32-66.0.32-76.0.33-16.0.35-1	6.0.35-1+squeeze2
`tomcat6` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-el-2.1-api` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-jsp-2.1-api` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-lib` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-servlet-2.5-api` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-admin-webapps` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1

Show 100 moreShow less

Affected packages
Package	Affected	Fixed
`tomcat6-docs-webapp` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-javadoc` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat6-webapps` Red Hat:enterprise_linux:6::server	before 0:6.0.24-35.el6_1	0:6.0.24-35.el6_1
`tomcat5` Red Hat:enterprise_linux:5::client	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-debuginfo` Red Hat:enterprise_linux:5::client	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jsp-2.0-api` Red Hat:enterprise_linux:5::client	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-servlet-2.4-api` Red Hat:enterprise_linux:5::client	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-admin-webapps` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-common-lib` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-debuginfo` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jasper` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jasper-javadoc` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jsp-2.0-api-javadoc` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-server-lib` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-servlet-2.4-api-javadoc` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-webapps` Red Hat:enterprise_linux:5::client_workstation	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-admin-webapps` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-common-lib` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-debuginfo` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jasper` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jasper-javadoc` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jsp-2.0-api` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-jsp-2.0-api-javadoc` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-server-lib` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-servlet-2.4-api` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-servlet-2.4-api-javadoc` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`tomcat5-webapps` Red Hat:enterprise_linux:5::server	before 0:5.5.23-0jpp.22.el5_7	0:5.5.23-0jpp.22.el5_7
`jbossweb` Red Hat:jboss_enterprise_application_platform:5::el4	before 0:2.1.12-3_patch_03.2.ep5.el4	0:2.1.12-3_patch_03.2.ep5.el4
`jbossweb-el-1.0-api` Red Hat:jboss_enterprise_application_platform:5::el4	before 0:2.1.12-3_patch_03.2.ep5.el4	0:2.1.12-3_patch_03.2.ep5.el4
`jbossweb-jsp-2.1-api` Red Hat:jboss_enterprise_application_platform:5::el4	before 0:2.1.12-3_patch_03.2.ep5.el4	0:2.1.12-3_patch_03.2.ep5.el4
`jbossweb-lib` Red Hat:jboss_enterprise_application_platform:5::el4	before 0:2.1.12-3_patch_03.2.ep5.el4	0:2.1.12-3_patch_03.2.ep5.el4
`jbossweb-servlet-2.5-api` Red Hat:jboss_enterprise_application_platform:5::el4	before 0:2.1.12-3_patch_03.2.ep5.el4	0:2.1.12-3_patch_03.2.ep5.el4
`jbossweb` Red Hat:jboss_enterprise_application_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-el-1.0-api` Red Hat:jboss_enterprise_application_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-jsp-2.1-api` Red Hat:jboss_enterprise_application_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-lib` Red Hat:jboss_enterprise_application_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-servlet-2.5-api` Red Hat:jboss_enterprise_application_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb` Red Hat:jboss_enterprise_application_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-el-1.0-api` Red Hat:jboss_enterprise_application_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-jsp-2.1-api` Red Hat:jboss_enterprise_application_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-lib` Red Hat:jboss_enterprise_application_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-servlet-2.5-api` Red Hat:jboss_enterprise_application_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb` Red Hat:jboss_enterprise_web_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-el-1.0-api` Red Hat:jboss_enterprise_web_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-jsp-2.1-api` Red Hat:jboss_enterprise_web_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-lib` Red Hat:jboss_enterprise_web_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb-servlet-2.5-api` Red Hat:jboss_enterprise_web_platform:5::el5	before 0:2.1.12-3_patch_03.2.ep5.el5	0:2.1.12-3_patch_03.2.ep5.el5
`jbossweb` Red Hat:jboss_enterprise_web_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-el-1.0-api` Red Hat:jboss_enterprise_web_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-jsp-2.1-api` Red Hat:jboss_enterprise_web_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-lib` Red Hat:jboss_enterprise_web_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`jbossweb-servlet-2.5-api` Red Hat:jboss_enterprise_web_platform:5::el6	before 0:2.1.12-3_patch_03.2.ep5.el6	0:2.1.12-3_patch_03.2.ep5.el6
`tomcat5` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-admin-webapps` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-common-lib` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-jasper` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-jasper-eclipse` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-jasper-javadoc` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-jsp-2.0-api` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-jsp-2.0-api-javadoc` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-parent` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-server-lib` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-servlet-2.4-api` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-servlet-2.4-api-javadoc` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5-webapps` Red Hat:jboss_enterprise_web_server:1::el5	before 0:5.5.33-27_patch_07.ep5.el5	0:5.5.33-27_patch_07.ep5.el5
`tomcat5` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-admin-webapps` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-common-lib` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-jasper` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-jasper-eclipse` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-jasper-javadoc` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-jsp-2.0-api` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-jsp-2.0-api-javadoc` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-parent` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-server-lib` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-servlet-2.4-api` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-servlet-2.4-api-javadoc` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat5-webapps` Red Hat:jboss_enterprise_web_server:1::el6	before 0:5.5.33-28_patch_07.ep5.el6	0:5.5.33-28_patch_07.ep5.el6
`tomcat6` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-admin-webapps` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-docs-webapp` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-el-1.0-api` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-javadoc` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-jsp-2.1-api` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-lib` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-log4j` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-servlet-2.5-api` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6-webapps` Red Hat:jboss_enterprise_web_server:1::el5	before 0:6.0.32-24_patch_07.ep5.el5	0:6.0.32-24_patch_07.ep5.el5
`tomcat6` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-admin-webapps` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-docs-webapp` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-el-1.0-api` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-javadoc` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-jsp-2.1-api` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-lib` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-log4j` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-servlet-2.5-api` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6
`tomcat6-webapps` Red Hat:jboss_enterprise_web_server:1::el6	before 0:6.0.32-24_patch_07.ep5.el6	0:6.0.32-24_patch_07.ep5.el6

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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