CVE-2024-54677

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.9.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.

This vulnerability does not affect core Apache Tomcat server components (tomcat-catalina, tomcat-coyote, tomcat-embed-core, etc.). Removing the webapps/examples/ directory in production environments — as recommended by the Apache Tomcat Security Considerations documentation — eliminates the attack surface entirely.

The Apache Tomcat software is developed in an open and participatory environment and released under the Apache License version 2. The Apache Tomcat project is intended to be a collaboration of the best-of-breed developers from around the world. We invite you to participate in this open development project

Security Fix(es):

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability during JSP compilation in Apache Tomcat permits an RCE on case insensitive file systems when the default servlet is enabled for write (non-default configuration). This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.08, which fixes the issue.(CVE-2024-50379)

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.9.97. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.(CVE-2024-54677)

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

Security Fix(es):

• tomcat: Apache Tomcat: Authentication bypass when using Jakarta Authentication API (CVE-2024-52316)

• tomcat: Apache Tomcat: DoS in examples web application (CVE-2024-54677)

• tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT (CVE-2025-24813)

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.

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.9.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.

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

Security Fix(es):

• tomcat: Apache Tomcat: Authentication bypass when using Jakarta Authentication API (CVE-2024-52316)
• tomcat: Apache Tomcat: DoS in examples web application (CVE-2024-54677)
• tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT (CVE-2025-24813)

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.

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.

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service.

This issue affects Apache Tomcat: from 11.0.0 through 11.0.1, from 10.1.0 through 10.1.33, from 9.0.0 through 9.9.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.

TuxCare rebuilt 5 packages to address 18 CVEs. Fixed in 9.0.75-tuxcare.1.

TuxCare rebuilt 6 packages to address 18 CVEs. Fixed in 9.0.83-tuxcare.1.

TuxCare rebuilt 6 packages to address 22 CVEs. Fixed in 10.1.18-tuxcare.1.

TuxCare rebuilt 5 packages to address 6 CVEs. Fixed in 9.0.13-tuxcare.4.

TuxCare rebuilt 3 packages to address 3 CVEs. Fixed in 9.0.50-tuxcare.17.

TuxCare rebuilt 6 packages to address 9 CVEs. Fixed in 9.0.39-tuxcare.3.

TuxCare rebuilt 5 packages to address 8 CVEs. Fixed in 10.1.16-tuxcare.2.

RCE due to TOCTOU issue in JSP compilation. (CVE-2024-50379) DoS in examples web application. (CVE-2024-54677)

These are all security issues fixed in the tomcat-9.0.98-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the tomcat10-10.1.34-1.1 package on the GA media of openSUSE Tumbleweed.

This update for tomcat10 fixes the following issues:

Update to Tomcat 10.1.34

• Fixed CVEs:
  • CVE-2024-54677: DoS in examples web application (bsc#1234664)
  • CVE-2024-50379: RCE due to TOCTOU issue in JSP compilation (bsc#1234663)
  • CVE-2024-52317: Request/response mix-up with HTTP/2 (bsc#1233435)
  • CVE-2024-56337: RCE due to TOCTOU issue in JSP compilation - mitigation was incomplete
• Catalina
  • Add: Add option to serve resources from subpath only with WebDAV Servlet like with DefaultServlet. (michaelo)
  • Fix: Add special handling for the protocols attribute of SSLHostConfig in storeconfig. (remm)
  • Fix: 69442: Fix case sensitive check on content-type when parsing request parameters. (remm)
  • Code: Refactor duplicate code for extracting media type and subtype from content-type into a single method. (markt)
  • Fix: Compatibility of generated embedded code with components where constructors or property related methods throw a checked exception. (remm)
  • Fix: The previous fix for inconsistent resource metadata during concurrent reads and writes was incomplete. (markt)
  • Fix: #780: Fix content-range header length. Submitted by Chenjp. (remm)
  • Fix: 69444: Ensure that the jakarta.servlet.error.message request attribute is set when an application defined error page is called. (markt)
  • Fix: Avoid quotes for numeric values in the JSON generated by the status servlet. (remm)
  • Add: Add strong ETag support for the WebDAV and default servlet, which can be enabled by using the useStrongETags init parameter with a value set to true. The ETag generated will be a SHA-1 checksum of the resource content. (remm)
  • Fix: Use client locale for directory listings. (remm)
  • Fix: 69439: Improve the handling of multiple Cache-Control headers in the ExpiresFilter. Based on pull request #777 by Chenjp. (markt)
  • Fix: 69447: Update the support for caching classes the web application class loader cannot find to take account of classes loaded from external repositories. Prior to this fix, these classes could be incorrectly marked as not found. (markt)
  • Fix: 69466: Rework handling of HEAD requests. Headers explicitly set by users will not be removed and any header present in a HEAD request will also be present in the equivalent GET request. There may be some headers, as per RFC 9110, section 9.3.2, that are present in a GET request that are not present in the equivalent HEAD request. (markt)
  • Fix: 69471: Log instances of CloseNowException caught by ApplicationDispatcher.invoke() at debug level rather than error level as they are very likely to have been caused by a client disconnection or similar I/O issue. (markt)
  • Add: Add a test case for the fix for 69442. Also refactor references to application/x-www-form-urlencoded. Based on pull request #779 by Chenjp. (markt)
  • Fix: 69476: Catch possible ISE when trying to report PUT failure in the DefaultServlet. (remm)
  • Add: Add support for RateLimit header fields for HTTP (draft) in the RateLimitFilter. Based on pull request #775 provided by Chenjp. (markt)
  • Add: #787: Add regression tests for 69478. Pull request provided by Thomas Krisch. (markt)
  • Fix: The default servlet now rejects HTTP range requests when two or more of the requested ranges overlap. Based on pull request #782 provided by Chenjp. (markt)
  • Fix: Enhance Content-Range verification for partial PUT requests handled by the default servlet. Provided by Chenjp in pull request #778. (markt)
  • Fix: Harmonize DataSourceStore lookup in the global resources to optionally avoid the comp/env prefix which is usually not used there. (remm)
  • Fix: As required by RFC 9110, the HTTP Range header will now only be processed for GET requests. Based on pull request #790 provided by Chenjp. (markt)
  • Fix: Deprecate the useAcceptRanges initialisation parameter for the …

This update for tomcat fixes the following issues:

Update to Tomcat 9.0.98

• Fixed CVEs:
  • CVE-2024-54677: DoS in examples web application (bsc#1234664)
  • CVE-2024-50379: RCE due to TOCTOU issue in JSP compilation (bsc#1234663)
  • CVE-2024-52317: Request/response mix-up with HTTP/2 (bsc#1233435)
• Catalina
  • Add: Add option to serve resources from subpath only with WebDAV Servlet like with DefaultServlet. (michaelo)
  • Fix: Add special handling for the protocols attribute of SSLHostConfig in storeconfig. (remm)
  • Fix: 69442: Fix case sensitive check on content-type when parsing request parameters. (remm)
  • Code: Refactor duplicate code for extracting media type and subtype from content-type into a single method. (markt)
  • Fix: Compatibility of generated embedded code with components where constructors or property related methods throw a checked exception. (remm)
  • Fix: The previous fix for inconsistent resource metadata during concurrent reads and writes was incomplete. (markt)
  • Fix: 69444: Ensure that the javax.servlet.error.message request attribute is set when an application defined error page is called. (markt)
  • Fix: Avoid quotes for numeric values in the JSON generated by the status servlet. (remm)
  • Add: Add strong ETag support for the WebDAV and default servlet, which can be enabled by using the useStrongETags init parameter with a value set to true. The ETag generated will be a SHA-1 checksum of the resource content. (remm)
  • Fix: Use client locale for directory listings. (remm)
  • Fix: 69439: Improve the handling of multiple Cache-Control headers in the ExpiresFilter. Based on pull request #777 by Chenjp. (markt)
  • Fix: 69447: Update the support for caching classes the web application class loader cannot find to take account of classes loaded from external repositories. Prior to this fix, these classes could be incorrectly marked as not found. (markt)
  • Fix: 69466: Rework handling of HEAD requests. Headers explicitly set by users will not be removed and any header present in a HEAD request will also be present in the equivalent GET request. There may be some headers, as per RFC 9110, section 9.3.2, that are present in a GET request that are not present in the equivalent HEAD request. (markt)
  • Fix: 69471: Log instances of CloseNowException caught by ApplicationDispatcher.invoke() at debug level rather than error level as they are very likely to have been caused by a client disconnection or similar I/O issue. (markt)
  • Add: Add a test case for the fix for 69442. Also refactor references to application/x-www-form-urlencoded. Based on pull request #779 by Chenjp. (markt)
  • Fix: 69476: Catch possible ISE when trying to report PUT failure in the DefaultServlet. (remm)
  • Add: Add support for RateLimit header fields for HTTP (draft) in the RateLimitFilter. Based on pull request #775 provided by Chenjp. (markt)
  • Add: #787: Add regression tests for 69478. Pull request provided by Thomas Krisch. (markt)
  • Fix: The default servlet now rejects HTTP range requests when two or more of the requested ranges overlap. Based on pull request #782 provided by Chenjp. (markt)
  • Fix: Enhance Content-Range verification for partial PUT requests handled by the default servlet. Provided by Chenjp in pull request #778. (markt)
  • Fix: Harmonize DataSourceStore lookup in the global resources to optionally avoid the comp/env prefix which is usually not used there. (remm)
  • Fix: As required by RFC 9110, the HTTP Range header will now only be processed for GET requests. Based on pull request #790 provided by Chenjp. (markt)
  • Fix: Deprecate the useAcceptRanges initialisation parameter for the default servlet. It will be removed in Tomcat 12 onwards where it will effectively be hard coded to true. (markt)
  • Add: Add DataSource based property storage for…

This update for tomcat fixes the following issues:

• CVE-2024-50379: Fixed remote code execution (RCE) due to TOCTOU issue in JSP compilation (bsc#1234663).
• CVE-2024-54677: Fixed denial-of-service (DoS) attack in examples web application (bsc#1234664).

This update for tomcat fixes the following issues:

Update to Tomcat 9.0.115:

• CVE-2025-48989: HTTP/2 protocol (including DNS over HTTPS) is vulnerable to 'MadeYouReset' DoS attack (bsc#1243895).
• CVE-2025-52434: race condition on connection close when using the APR/Native connector could lead to a JVM crash (bsc#1246389).
• CVE-2025-53506: uncontrolled resource HTTP/2 client consumption vulnerability (bsc#1246318).
• CVE-2025-66614: client certificate verification bypass due to virtual host mapping (bsc#1258371).
• CVE-2026-24733: improper input validation on HTTP/0.9 requests (bsc#1258385).
• CVE-2023-44487: Rapid reset attack (bsc#1216182).

It was discovered that Tomcat did not correctly handle case sensitivity. An attacker could possibly use this issue to bypass authentication mechanisms. (CVE-2025-46701)

Elysee Franchuk discovered that Tomcat did not correctly limit the number of attributes for a session. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS. (CVE-2024-54677)

It was discovered that Tomcat did not correctly sanitize certain URLs. An attacker could possibly use this issue to bypass authentication mechanisms. (CVE-2025-31651)

It was discovered that Tomcat did not correctly handle certain malformed HTTP headers, which could lead to a memory leak. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS. (CVE-2025-31650)

It was discovered that Tomcat did not correctly handle concurrent operations under certain circumstances. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 24.04 LTS. (CVE-2024-50379)

It was discovered that Tomcat did not correctly handle certain authentication errors. An attacker could possibly use this issue to bypass authentication mechanisms. This issue only affected Ubuntu 24.04 LTS. (CVE-2024-52316)