Apache Tomcat - HTTP/2 request headers not validated

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: HTTP/2 request headers were not validated which may have triggered unexpected application behaviour if the...

Apache Tomcat: LockOutRealm treats user names as case-sensitive

Improper Handling of Case Sensitivity vulnerability in LockOutRealm in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions...

Apache Tomcat - Digest authenticator will authenticate any unknown user

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: When DIGEST authentication was configured, any user not known to the configured Realm would be authenticated if...

Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: No limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to...

EUVD-2026-29513

Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade ...

EUVD-2026-29515

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through...

EUVD-2026-29517

Improper Handling of Case Sensitivity vulnerability in LockOutRealm in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions...

EUVD-2026-29519

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

EUVD-2026-29514

Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to...

EUVD-2026-29516

DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported...

EUVD-2026-29518

Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versio...

Information Disclosure org.apache.tomcat:tomcat-catalina Dependency in Jira Service Management Data Center

This High severity Information Disclosure vulnerability was introduced in versions 5.15.2, 5.16.0, 5.17.0, 10.0.1, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Service Management Data Center. This Information Disclosure vulnerability, with a...

Improper Validation of Syntactic Correctness of Input

Overview tomcat:tomcat-coyote is a discontinued coyote plugin for Tomcat. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially compromise the...

Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the WebDAV LOCK and PROPFIND XML request bodies. An attacker can cause excessive resource consumption by...

geronimo:geronimo-tomcat (>=1.0 <=1.1.1), geronimo:geronimo-tomcat-builder (>=1.0 <=1.1.1) +17 more potentially affected by CVE-2026-41293 via tomcat:tomcat-coyote (>=5.5.15 <=5.5.9)

tomcat:tomcat-coyote MAVEN version =5.5.15, =1.0, =1.0, =1.1.1 - geronimo:tomcat =1.0 - org.apache.geronimo.assemblies:geronimo-tomcat-minimal =1.2-beta - org.apache.geronimo.configs:ca-helper-tomcat =1.2-beta - org.apache.geronimo.configs:dojo-tomcat =1.2-beta -...

br.com.arsmachina:tapestry-url-rewriter (>=1.0.1 <=2.0.0), com.butor:butor-mule (>=1.0.3 <=1.0.18) +167 more potentially affected by CVE-2026-41293 via org.apache.tomcat:coyote (>=6.0.13 <=6.0.53)

org.apache.tomcat:coyote MAVEN version =6.0.13, =1.0.1, =1.0.3, =1.5, =1.8.2, =1.40, =1.40, =1.40, =2.3.0, =2.3.0, =1.0.b1, =20250815, =20260429 and more Source cves: CVE-2026-41293 Source advisory: SNYK:JAVA-ORGAPACHETOMCAT-16691219...

Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat:tomcat-coyote is a Tomcat Connectors and HTTP parser. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially compromi...

Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat:coyote is a maven plugin for Tomcat Connectors and HTTP parser. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentiall...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the WebDAV LOCK and PROPFIND XML request bodies. An attacker can cause...