The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3430-1 advisory.

    Update to Tomcat 11.0.24.

    Security issues fixed:

    - CVE-2026-59083: incorrect URL decoding in `RewriteValve` may allow security control bypass     (bsc#1271397).
    - CVE-2026-59084: `EncryptInterceptor` requirements are not clearly documented (bsc#1271398).

    Other updates and bugfixes:

    - Tomcat 11.0.24:
      * Catalina
        - Fix: Avoid a race condition with concurrent lookups for a singleton JNDI           resource. (markt)
        - Fix: Improve the performance of range validation for the default           servlet. (markt)
        - Fix: Avoid NPE in RewriteValve. (markt)
        - Fix: 70127: Fix use of Bootstrap through reflection by restoring the           public constructor. Use through scripts was not affected. (remm)
        - Fix: Restore ability to extend many element classes from           AbstractAccessLogValve. (remm)
        - Fix: Align DIGEST authentication with RFC 7616 and require clients to           provide a valid qop parameter. (markt)
        - Fix: Use Files API to create temporary docBase when antiLockingDocBase           is enabled. (markt)
        - Fix: Improve validation of configuration when DataSourceRealm starts.
          (remm)
        - Fix: JAASRealm should do a logout if login does not fail outright but           does not produce a Principal. (remm)
        - Fix: Various edge cases for SSI substitutions, quoting and escaping.
        - Fix: unintentional conversion of literal + to a space during rule           processing in the RewriteValve. (markt)
      * Coyote
        - Fix: Avoid a potential JVM crash if a suitable version of Tomcat Native           is not available when the connector is explicitly configured to use           Tomcat Native with OpenSSL for TLS. (markt)
      * Jasper
        - Fix: 70120: The fix for 69399 (itself a fix for a regression in the fix           for 69333) was incomplete and tags that threw exceptions in doStartTag()           and doEndTag() were incorrectly re-used. This fix prevents tags from           being re-used if such an exception occurs. (markt)
        - Add: support for specifying Java 28 (with the value 28) as the compiler           source and/or compiler target for JSP compilation. If used with an           Eclipse JDT compiler version that does not support these values, a           warning will be logged and the default will be used. (markt)
      * WebSocket
        - Fix: 70126: Fix WebSocket extension permessage-deflate so that it does           not drop bytes if a compressed message inflates to more than the           available buffer. Fix written by GPT-5.5. Test case written by Hironori           Ichimiya. (markt)
        - Fix: Optimise WebSocket client processing of server responses during           WebSocket HTTP upgrade process. (markt)
      * Other
        - Update: to the Eclipse JDT compiler 4.40. (markt)
        - Update: Byte Buddy to 1.18.9. (markt)
        - Update: UnboundID to 7.0.5. (markt)
        - Update: JaCoCo to 0.8.15. (markt)
        - Update: BND to 7.3.0. (markt)
        - Add: Improvements to French translations. (remm)
        - Add: Improvements to Japanese translations provided by tak7iji. (markt)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21487-1 advisory.

    Update to Tomcat 10.1.57.

    Security issues fixed:

    - CVE-2026-59083: incorrect URL decoding in `RewriteValve` may allow security control bypass     (bsc#1271397).
    - CVE-2026-59084: `EncryptInterceptor` requirements are not clearly documented (bsc#1271398).

    Other updates and bugfixes:

    - Tomcat 10.1.57:
      * Catalina
        - Fix: Avoid a race condition with concurrent lookups for a singleton JNDI           resource. (markt)
        - Fix: Improve the performance of range validation for the default           servlet. (markt)
        - Fix: Avoid NPE in RewriteValve. (markt)
        - Fix: 70127: Fix use of Bootstrap through reflection by restoring the           public constructor. Use through scripts was not affected. (remm)
        - Fix: Restore ability to extend many element classes from           AbstractAccessLogValve. (remm)
        - Fix: Align DIGEST authentication with RFC 7616 and require clients to           provide a valid qop parameter. (markt)
        - Fix: Use Files API to create temporary docBase when antiLockingDocBase           is enabled. (markt)
        - Fix: Improve validation of configuration when DataSourceRealm starts.
          (remm)
        - Fix: JAASRealm should do a logout if login does not fail outright but           does not produce a Principal. (remm)
        - Fix: Various edge cases for SSI substitutions, quoting and escaping.
        - Fix: unintentional conversion of literal + to a space during rule           processing in the RewriteValve. (markt)
      * Coyote
        - Fix: Avoid a potential JVM crash if a suitable version of Tomcat Native           is not available when the connector is explicitly configured to use           Tomcat Native with OpenSSL for TLS. (markt)
      * Jasper
        - Fix: 70120: The fix for 69399 (itself a fix for a regression in the fix           for 69333) was incomplete and tags that threw exceptions in doStartTag()           and doEndTag() were incorrectly re-used. This fix prevents tags from           being re-used if such an exception occurs. (markt)
        - Fix: 70135: Fix security classload regression. (remm)
        - Add: support for specifying Java 28 (with the value 28) as the compiler           source and/or compiler target for JSP compilation. If used with an           Eclipse JDT compiler version that does not support these values, a           warning will be logged and the default will be used. (markt)
      * WebSocket
        - Fix: 70126: Fix WebSocket extension permessage-deflate so that it does           not drop bytes if a compressed message inflates to more than the           available buffer. Fix written by GPT-5.5. Test case written by Hironori           Ichimiya. (markt)
        - Fix: Optimise WebSocket client processing of server responses during           WebSocket HTTP upgrade process. (markt)
      * Other
        - Update: Byte Buddy to 1.18.9. (markt)
        - Update: UnboundID to 7.0.5. (markt)
        - Update: JaCoCo to 0.8.15. (markt)
        - Update: BND to 7.3.0. (markt)
        - Add: Improvements to French translations. (remm)
        - Add: Improvements to Japanese translations provided by tak7iji. (markt)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1784297753 advisory.

  - Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the     default servlet ignoring any method or method omission configured as part of the constraint. This issue     affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1     through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached     end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or     9.0.119, which fix the issue. (CVE-2026-55956)

  - Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed     security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1     through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through     8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to     upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue. (CVE-2026-59083)

  - Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely     configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from     11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38     through 8.5.100, from 7.0.100 through 7.0.109. Other versions that have reached end of support may also be     affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 which fix the issue.
    (CVE-2026-59084)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tomcat installed on the remote host is prior to 11.0.24. It is, therefore, affected by multiple vulnerabilities as referenced in the fixed_in_apache_tomcat_11.0.24_security-11 advisory.

  - Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely     configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from     11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38     through 8.5.100, from 7.0.100 through 7.0.109. Other versions that have reached end of support may also be     affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 which fix the issue.
    (CVE-2026-59084)

  - Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed     security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1     through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through     8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to     upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue. (CVE-2026-59083)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the apache package has been released.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1945 advisory.

    Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number     guess example for Apache Tomcat.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from     9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have     reached end of support may also be affected.

    Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
    (CVE-2026-50229)

    Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if     the first condition in an OR chain matched, subsequent non-OR conditions were skipped.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from     9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may     also be affected.

    Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
    (CVE-2026-53404)

    Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring CRLs for a FFM     based connector.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from     9.0.83 through 9.0.118.

    Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fixes the issue.
    (CVE-2026-53434)

    Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and     empty authorisation constraints were not included when the effective web.xml was logged.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from     9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may     also be affected.

    Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.
    (CVE-2026-55276)

    Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the     EncryptionInterceptor in the cluster component.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from     9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.

    Users are recommended to upgrade to version 11.0.23, 10.1.56, 9.0.119, which fixes the issue.
    (CVE-2026-55955)

    Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the     default servlet ignoring any method or method omission configured as part of the constraint.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from     9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have     reached end of support may also be affected.

    Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
    (CVE-2026-55956)

    Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed     security constraint bypass for some configurations.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from     9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may     also be affected.

    Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.
    (CVE-2026-59083)

    Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely     configure the EncryptInterceptor were not clearly documented.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from     9.0.13 through 9.0.119, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Other versions that     have reached end of support may also be affected.

    Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 which fix the issue.
    (CVE-2026-59084)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:68680 advisory.

    Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

    Security Fix(es):

    * tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512)

    * tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293)

    * tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during     WebSocket authentication. (CVE-2026-42498)

    * tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515)

    * tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513)

    * tomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration     (CVE-2026-55957)

    * tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve     (CVE-2026-59083)

    * tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure     configurations (CVE-2026-59084)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:68679 advisory.

    Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

    Security Fix(es):

    * Apache Tomcat: Apache Tomcat: Improper Input Validation vulnerability due to incomplete fix     (CVE-2026-32990)

    * tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512)

    * tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293)

    * tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during     WebSocket authentication. (CVE-2026-42498)

    * tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515)

    * tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513)

    * tomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration     (CVE-2026-55957)

    * tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve     (CVE-2026-59083)

    * tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure     configurations (CVE-2026-59084)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:68660 advisory.

    * Apache Tomcat: Apache Tomcat: Improper Input Validation vulnerability due to incomplete fix     (CVE-2026-32990)
      * tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512)
      * tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293)
      * tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during     WebSocket authentication. (CVE-2026-42498)
      * tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515)
      * tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513)
      * tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve     (CVE-2026-59083)
      * tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure     configurations (CVE-2026-59084)


    Bug Fix(es) and Enhancement(s):

      * Tomcat fails to respond to client connections when using Java 8 [almalinux-9.8]     (JIRA:AlmaLinux-257456)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:68651 advisory.

    * Apache Tomcat: Apache Tomcat: Improper Input Validation vulnerability due to incomplete fix     (CVE-2026-32990)

    * tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512)

    * tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293)

    * tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during     WebSocket authentication. (CVE-2026-42498)

    * tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515)

    * tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513)

    * tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve     (CVE-2026-59083)

    * tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure     configurations (CVE-2026-59084)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
331434	SUSE SLES15: tomcat11 / tomcat11-admin-webapps / tomcat11-el-6_0-api / etc (SUSE-SU-2026:3430-1)	Nessus	SuSE Local Security Checks	2026/7/31	2026/7/31	critical
331564	openSUSE 16: tomcat10 / tomcat10-admin-webapps / tomcat10-el-5_0-api / etc (openSUSE-SU-2026:21487-1)	Nessus	SuSE Local Security Checks	2026/8/1	2026/8/1	critical
351593	AlmaLinux 9.2 [TuxCare] Security Update: tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1784297753)	Nessus	Alma Linux Local Security Checks	2026/9/30	2026/9/30	critical
326732	Apache Tomcat 11.0.0.M1 < 11.0.24 multiple vulnerabilities	Nessus	Web Servers	2026/7/14	2026/7/28	critical
375044	Photon OS 5.0: Apache PHSA-2026-5.0-92-1006	Nessus	PhotonOS Local Security Checks	2026/11/2	2026/11/2	critical
328483	Amazon Linux 2023 : tomcat9, tomcat9-admin-webapps, tomcat9-el-3.0-api (ALAS2023-2026-1945)	Nessus	Amazon Linux Local Security Checks	2026/7/20	2026/7/31	critical
346918	RHEL 8 : tomcat (RHSA-2026:68680)	Nessus	Red Hat Local Security Checks	2026/9/17	2026/9/17	critical
346928	RHEL 9 : tomcat (RHSA-2026:68679)	Nessus	Red Hat Local Security Checks	2026/9/17	2026/9/17	medium
348289	AlmaLinux 9 : tomcat (ALSA-2026:68660)	Nessus	Alma Linux Local Security Checks	2026/9/19	2026/9/25	medium
348575	RockyLinux 10 : tomcat9 (RLSA-2026:68651)	Nessus	Rocky Linux Local Security Checks	2026/9/21	2026/9/25	medium

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