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CVE-2021-43980

Apache Tomcat: Information disclosure

3.7 LowFix available

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

2.36%Up 1.5 points since Sep 29, 2022
90%50%10%1%

What each source reports

NVD Score used 3.7

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
CVE-2021-43980
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-362
Updated
2026-11-02
CVE List 3.7

Apache Tomcat: Information disclosure

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
CVE-2021-43980
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-362
Updated
2026-11-02
EUVDEUVD-2022-6865 3.7

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
EUVD-2022-6865
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-jx7c-7mj5-9438 3.7

Apache Tomcat Race Condition vulnerability

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
GHSA-jx7c-7mj5-9438
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-362
Updated
2026-11-02
OSV 3.7

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
CVE-2021-43980
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2021-43980 3.7

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
DEBIAN-CVE-2021-43980
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
Show 20 moreShow less
OSVGHSA-jx7c-7mj5-9438 3.7

Apache Tomcat Race Condition vulnerability

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
GHSA-jx7c-7mj5-9438
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-362
Updated
2026-11-02
OSVOESA-2024-2402 8.6

tomcat security update

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):

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.(CVE-2021-43980)

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.(CVE-2022-25762)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.(CVE-2023-44487)

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

(CVE-2023-46589)

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-23672)

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-24549)

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.

Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

(CVE-2024-34750)

Record
OESA-2024-2402
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Updated
2026-11-02
OSVOESA-2024-2403 8.6

tomcat security update

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):

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.(CVE-2021-43980)

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.(CVE-2022-25762)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.(CVE-2023-44487)

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

(CVE-2023-46589)

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-23672)

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-24549)

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.

Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

(CVE-2024-34750)

Record
OESA-2024-2403
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Updated
2026-11-02
OSVOESA-2024-2404 8.6

tomcat security update

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):

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.(CVE-2021-43980)

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.(CVE-2022-25762)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.(CVE-2023-44487)

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

(CVE-2023-46589)

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-23672)

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-24549)

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.

Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

(CVE-2024-34750)

Record
OESA-2024-2404
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Updated
2026-11-02
OSVOESA-2024-2405 8.6

tomcat security update

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):

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.(CVE-2021-43980)

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.(CVE-2022-25762)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.(CVE-2023-44487)

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

(CVE-2023-46589)

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-23672)

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-24549)

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.

Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

(CVE-2024-34750)

Record
OESA-2024-2405
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Updated
2026-11-02
OSVOESA-2024-2460 8.6

tomcat security update

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):

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.(CVE-2021-43980)

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.(CVE-2022-25762)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.(CVE-2023-44487)

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

(CVE-2023-46589)

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-23672)

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

(CVE-2024-24549)

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.

Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

(CVE-2024-34750)

(CVE-2024-52318)

Record
OESA-2024-2460
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Updated
2026-11-02
OSVRHSA-2022:7272 7.0

Red Hat Security Advisory: Red Hat JBoss Web Server 5.7.0 release and security update

Record
RHSA-2022:7272
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2021-43980 3.7

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
UBUNTU-CVE-2021-43980
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVBIT-tomcat-2021-43980 No score

Apache Tomcat: Information disclosure

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0, 10.0.0 to 10.0.18, 9.0.0 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Record
BIT-tomcat-2021-43980
Updated
2026-11-02
OSVCLSA-2025-1748282295 No score

Fix of 34 CVEs

  • SECURITY UPDATE: Misc vulnerability fixes
    • CVE-2019-12418, CVE-2019-17563, CVE-2020-1935, CVE-2020-11996, CVE-2020-13934, CVE-2020-13935, CVE-2020-13943, CVE-2020-17527, CVE-2021-24122, CVE-2021-30639, CVE-2021-30640, CVE-2021-33037, CVE-2021-42340, CVE-2021-43980, CVE-2022-25762, CVE-2022-34305, CVE-2022-45143, CVE-2023-24998, CVE-2023-28709, CVE-2023-34981, CVE-2023-42794, CVE-2024-21733
  • Update to 8.5.100
    • debian/rules, debian/libtomcat8-java.poms, debian/maven.rules, debian/tomcat8-common.links, debian/patches/0018-fix-manager-webapp.patch, debian/patches/0019-add-distribution-to-error-page.patch, debian/patches/0021-dont-test-unsupported-ciphers.patch, debian/patches/0101-skipping-tests-incompatible-with-firewall.patch: updated
    • debian/patches/0002-do-not-load-AJP13-connector-by-default.patch, debian/patches/0026-easymock4-compatibility.patch: removed as they were applied in upstream
    • CVE-2019-0221.patch, CVE-2019-10072-1.patch, CVE-2019-10072-2.patch, CVE-2022-42252.patch, CVE-2020-1938.patch, CVE-2021-25122.patch, CVE-2021-41079.patch, CVE-2022-29885.patch, CVE-2020-9484.patch, CVE-2021-25329-pre1.patch, CVE-2021-25329.patch, CVE-2022-23181.patch, CVE-2023-44487.patch, CVE-2023-46589-pre1.patch, CVE-2023-46589-pre2.patch, CVE-2023-46589-pre3.patch, CVE-2023-46589-pre4.patch, CVE-2023-46589.patch: removed because these CVEs were fixed in upstream
  • Internal tests
    • debian/test_certs/*: updated from upstream branch 9.0.x, as the 8.0.x certs were expired
Record
CLSA-2025-1748282295
Updated
2026-11-02
OSVCLSA-2025-1764720465 No score

TuxCare security update for 5 packages (18 CVEs)

TuxCare rebuilt 5 packages to address 18 CVEs. Fixed in 9.0.50-tuxcare.2.

Record
CLSA-2025-1764720465
Updated
2026-11-02
OSVCLSA-2026-1773188120 No score

TuxCare security update for 5 packages (23 CVEs)

TuxCare rebuilt 5 packages to address 23 CVEs. Fixed in 9.0.46-tuxcare.1.

Record
CLSA-2026-1773188120
Updated
2026-11-02
OSVCLSA-2026-1792686740 No score

TuxCare security update for 5 packages (6 CVEs)

TuxCare rebuilt 5 packages to address 6 CVEs. Fixed in 9.0.39-tuxcare.1.

Record
CLSA-2026-1792686740
Updated
2026-11-02
OSVMGASA-2023-0138 No score

Updated tomcat packages fix security vulnerability

Information disclosure due to concurrency bug (CVE-2021-43980) Fix for CVE-2020-9484 introduced a time of check, time of use vulnerability (CVE-2022-23181) Correct documentation to warn of use over untrusted networks. (CVE-2022-29885) Correct documentation showing use of XSS vulnerability. (CVE-2022-34305) Fix to reject invalid Content-Length header (CVE-2022-42252) Fix escaping of the type, message or description values. (CVE-2022-45143) Fix FileUpload limiting of the number of request parts to be processed to prevent the possibility of an attacker triggering a DoS (CVE-2023-24998) Fix setting of session cookie secure attribute when using RemoteIpFilter with X-Forwarded-Proto header set to https (CVE-2023-28708) Obsolete tomcat-jsvc

Record
MGASA-2023-0138
Updated
2026-11-02
OSVopenSUSE-SU-2024:12534-1 No score

tomcat-9.0.43-11.1 on GA media

These are all security issues fixed in the tomcat-9.0.43-11.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12534-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:13441-1 No score

tomcat10-10.1.14-1.1 on GA media

These are all security issues fixed in the tomcat10-10.1.14-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:13441-1
Updated
2026-11-02
OSVSUSE-SU-2022:4009-1 No score

Security update for tomcat

This update for tomcat fixes the following issues:

  • CVE-2021-43980: Improve the recycling of Processor objects to make it more robust. (bsc#1203868)
Record
SUSE-SU-2022:4009-1
Updated
2026-11-02
OSVSUSE-SU-2022:4221-1 No score

Security update for tomcat

This update for tomcat fixes the following issues:

  • CVE-2021-43980: Improve the recycling of Processor objects to make it more robust. (bsc#1203868)
  • CVE-2022-42252: Fixed a request smuggling (bsc#1204918).
Record
SUSE-SU-2022:4221-1
Updated
2026-11-02
OSVSUSE-SU-2022:4257-1 No score

Security update for tomcat

This update for tomcat fixes the following issues:

  • CVE-2021-43980: Fixed information disclosure due to concurrency issues in Http11Processor (bsc#1203868).
  • CVE-2022-42252: Fixed a request smuggling (bsc#1204918).
Record
SUSE-SU-2022:4257-1
Updated
2026-11-02
OSVSUSE-SU-2026:1058-1 No score

Security update for tomcat

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).
Record
SUSE-SU-2026:1058-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.tomcat:tomcat
Maven
8.5.0 up to 8.5.78
8.5.78
org.apache.tomcat:tomcat
Maven
9.0.0-M1 up to 9.0.62
9.0.62
org.apache.tomcat:tomcat
Maven
10.0.0-M1 up to 10.0.20
10.0.20
org.apache.tomcat:tomcat
Maven
10.1.0-M1 up to 10.1.0-M14
10.1.0-M14
tomcat
Bitnami
8.5.0 up to 8.5.78, 9.0.0 up to 9.0.61, 10.0.0 up to 10.0.19
8.5.789.0.6110.0.19
libtomcat8-embed-java
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
libtomcat8-java
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
tomcat8
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
tomcat8-admin
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
tomcat8-common
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
Show 103 moreShow less
Affected packages
PackageAffectedFixed
tomcat8-docs
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
tomcat8-examples
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
tomcat8-user
TuxCare:Ubuntu:18.04
before 8.5.100-1ubuntu1~18.04.1+tuxcare.els1
8.5.100-1ubuntu1~18.04.1+tuxcare.els1
org.apache.tomcat.embed:tomcat-embed-core
TuxCare:Maven
9.0.50 up to 9.0.50-tuxcare.2, plus listed versions
9.0.50-tuxcare.1
9.0.50-tuxcare.2
org.apache.tomcat:tomcat
TuxCare:Maven
9.0.50 up to 9.0.50-tuxcare.2, plus listed versions
9.0.50-tuxcare.1
9.0.50-tuxcare.2
org.apache.tomcat:tomcat-catalina
TuxCare:Maven
9.0.50 up to 9.0.50-tuxcare.2, plus listed versions
9.0.50-tuxcare.1
9.0.50-tuxcare.2
org.apache.tomcat:tomcat-coyote
TuxCare:Maven
9.0.50 up to 9.0.50-tuxcare.2, plus listed versions
9.0.50-tuxcare.1
9.0.50-tuxcare.2
org.apache.tomcat:tomcat-util
TuxCare:Maven
9.0.50 up to 9.0.50-tuxcare.2, plus listed versions
9.0.50-tuxcare.1
9.0.50-tuxcare.2
org.apache.tomcat.embed:tomcat-embed-core
TuxCare:Maven
9.0.46 up to 9.0.46-tuxcare.1
9.0.46-tuxcare.1
org.apache.tomcat:tomcat
TuxCare:Maven
9.0.46 up to 9.0.46-tuxcare.1
9.0.46-tuxcare.1
org.apache.tomcat:tomcat-catalina
TuxCare:Maven
9.0.46 up to 9.0.46-tuxcare.1
9.0.46-tuxcare.1
org.apache.tomcat:tomcat-coyote
TuxCare:Maven
9.0.46 up to 9.0.46-tuxcare.1
9.0.46-tuxcare.1
org.apache.tomcat:tomcat-util
TuxCare:Maven
9.0.46 up to 9.0.46-tuxcare.1
9.0.46-tuxcare.1
org.apache.tomcat.embed:tomcat-embed-core
TuxCare:Maven
9.0.39 up to 9.0.39-tuxcare.1
9.0.39-tuxcare.1
org.apache.tomcat:tomcat
TuxCare:Maven
9.0.39 up to 9.0.39-tuxcare.1
9.0.39-tuxcare.1
org.apache.tomcat:tomcat-catalina
TuxCare:Maven
9.0.39 up to 9.0.39-tuxcare.1
9.0.39-tuxcare.1
org.apache.tomcat:tomcat-coyote
TuxCare:Maven
9.0.39 up to 9.0.39-tuxcare.1
9.0.39-tuxcare.1
org.apache.tomcat:tomcat-tribes
TuxCare:Maven
9.0.39 up to 9.0.39-tuxcare.1
9.0.39-tuxcare.1
tomcat9
Debian:12
before 9.0.62-1
9.0.62-1
tomcat9
Debian:13
before 9.0.62-1
9.0.62-1
tomcat9
Debian:14
before 9.0.62-1
9.0.62-1
tomcat9
Debian:10
before 9.0.31-1~deb10u7, plus listed versions
9.0.16-49.0.16-59.0.22-19.0.24-19.0.27-1
Show 7 moreShow less
9.0.31-1~bpo10+19.0.31-1~deb10u19.0.31-1~deb10u29.0.31-1~deb10u39.0.31-1~deb10u49.0.31-1~deb10u59.0.31-1~deb10u6
9.0.31-1~deb10u7
tomcat9
Debian:11
before 9.0.43-2~deb11u4, plus listed versions
9.0.43-19.0.43-2~deb11u19.0.43-2~deb11u29.0.43-2~deb11u3
9.0.43-2~deb11u4
org.apache.tomcat:tomcat
Maven
8.5.0 up to 8.5.78, plus listed versions
8.5.118.5.128.5.138.5.148.5.15
Show 45 moreShow less
8.5.168.5.198.5.28.5.208.5.218.5.238.5.248.5.278.5.288.5.298.5.38.5.308.5.318.5.328.5.338.5.348.5.358.5.378.5.388.5.398.5.48.5.408.5.418.5.428.5.438.5.458.5.468.5.478.5.498.5.58.5.508.5.518.5.538.5.548.5.558.5.568.5.578.5.588.5.598.5.68.5.608.5.618.5.638.5.648.5.65
8.5.78
org.apache.tomcat:tomcat
Maven
9.0.0-M1 up to 9.0.62, plus listed versions
9.0.0.M19.0.0.M109.0.0.M119.0.0.M139.0.0.M15
Show 45 moreShow less
9.0.0.M179.0.0.M189.0.0.M199.0.0.M209.0.0.M219.0.0.M229.0.0.M259.0.0.M269.0.0.M279.0.0.M39.0.0.M49.0.0.M69.0.0.M89.0.0.M99.0.19.0.109.0.119.0.129.0.139.0.149.0.169.0.179.0.199.0.29.0.209.0.219.0.229.0.249.0.269.0.279.0.299.0.309.0.319.0.339.0.349.0.359.0.369.0.379.0.389.0.399.0.49.0.409.0.419.0.439.0.44
9.0.62
org.apache.tomcat:tomcat
Maven
10.0.0-M1 up to 10.0.20, plus listed versions
10.0.010.0.0-M1010.0.0-M310.0.0-M410.0.0-M5
Show 18 moreShow less
10.0.0-M610.0.0-M710.0.0-M810.0.0-M910.0.1010.0.1110.0.1210.0.1310.0.1410.0.1610.0.1710.0.1810.0.210.0.410.0.510.0.610.0.710.0.8
10.0.20
org.apache.tomcat:tomcat
Maven
10.1.0-M1 up to 10.1.0-M14, plus listed versions
10.1.0-M1010.1.0-M1110.1.0-M1210.1.0-M210.1.0-M4
Show 4 moreShow less
10.1.0-M510.1.0-M610.1.0-M710.1.0-M8
10.1.0-M14
tomcat
Mageia:8
before 9.0.73-1.1.mga8
9.0.73-1.1.mga8
tomcat
openEuler:22.03-LTS-SP3
before 9.0.96-1.oe2203sp3
9.0.96-1.oe2203sp3
tomcat
openEuler:20.03-LTS-SP4
before 9.0.96-1.oe2003sp4
9.0.96-1.oe2003sp4
tomcat
openEuler:22.03-LTS-SP1
before 9.0.96-1.oe2203sp1
9.0.96-1.oe2203sp1
tomcat
openEuler:22.03-LTS-SP4
before 9.0.96-1.oe2203sp4
9.0.96-1.oe2203sp4
tomcat
openEuler:24.03-LTS
before 9.0.96-2.oe2403
9.0.96-2.oe2403
jws5-ecj
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:4.20.0-1.redhat_00002.1.el7jws
0:4.20.0-1.redhat_00002.1.el7jws
jws5-tomcat
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-admin-webapps
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-docs-webapp
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-el-3.0-api
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-java-jdk11
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-java-jdk8
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-javadoc
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-jsp-2.3-api
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-lib
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-native
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:1.2.31-10.redhat_10.el7jws
0:1.2.31-10.redhat_10.el7jws
jws5-tomcat-native-debuginfo
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:1.2.31-10.redhat_10.el7jws
0:1.2.31-10.redhat_10.el7jws
jws5-tomcat-selinux
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-servlet-4.0-api
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-tomcat-webapps
Red Hat:jboss_enterprise_web_server:5.7::el7
before 0:9.0.62-9.redhat_00005.1.el7jws
0:9.0.62-9.redhat_00005.1.el7jws
jws5-ecj
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:4.20.0-1.redhat_00002.1.el8jws
0:4.20.0-1.redhat_00002.1.el8jws
jws5-tomcat
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-admin-webapps
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-docs-webapp
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-el-3.0-api
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-javadoc
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-jsp-2.3-api
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-lib
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-native
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:1.2.31-10.redhat_10.el8jws
0:1.2.31-10.redhat_10.el8jws
jws5-tomcat-native-debuginfo
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:1.2.31-10.redhat_10.el8jws
0:1.2.31-10.redhat_10.el8jws
jws5-tomcat-selinux
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-servlet-4.0-api
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5-tomcat-webapps
Red Hat:jboss_enterprise_web_server:5.7::el8
before 0:9.0.62-9.redhat_00005.1.el8jws
0:9.0.62-9.redhat_00005.1.el8jws
jws5
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1-8.el9jws
0:1-8.el9jws
jws5-ecj
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:4.20.0-1.redhat_00002.1.el9jws
0:4.20.0-1.redhat_00002.1.el9jws
jws5-javapackages-tools
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:3.4.1-5.15.11.el9jws
0:3.4.1-5.15.11.el9jws
jws5-jboss-logging
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:3.4.1-1.Final_redhat_00001.1.el9jws
0:3.4.1-1.Final_redhat_00001.1.el9jws
jws5-mod_cluster
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1.4.3-2.Final_redhat_00002.1.el9jws
0:1.4.3-2.Final_redhat_00002.1.el9jws
jws5-mod_cluster-tomcat
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1.4.3-2.Final_redhat_00002.1.el9jws
0:1.4.3-2.Final_redhat_00002.1.el9jws
jws5-python-javapackages
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:3.4.1-5.15.11.el9jws
0:3.4.1-5.15.11.el9jws
jws5-runtime
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1-8.el9jws
0:1-8.el9jws
jws5-tomcat
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-admin-webapps
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-docs-webapp
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-el-3.0-api
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-javadoc
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-jsp-2.3-api
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-lib
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-native
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1.2.31-10.redhat_10.el9jws
0:1.2.31-10.redhat_10.el9jws
jws5-tomcat-native-debuginfo
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1.2.31-10.redhat_10.el9jws
0:1.2.31-10.redhat_10.el9jws
jws5-tomcat-selinux
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-servlet-4.0-api
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
jws5-tomcat-vault
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1.1.8-4.Final_redhat_00004.1.el9jws
0:1.1.8-4.Final_redhat_00004.1.el9jws
jws5-tomcat-vault-javadoc
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:1.1.8-4.Final_redhat_00004.1.el9jws
0:1.1.8-4.Final_redhat_00004.1.el9jws
jws5-tomcat-webapps
Red Hat:jboss_enterprise_web_server:5.7::el9
before 0:9.0.62-9.redhat_00005.1.el9jws
0:9.0.62-9.redhat_00005.1.el9jws
tomcat
SUSE:Linux Enterprise Server 12 SP5
before 9.0.36-3.90.1
9.0.36-3.90.1
tomcat
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
before 9.0.36-3.90.1
9.0.36-3.90.1
tomcat
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
before 9.0.36-150000.3.101.2
9.0.36-150000.3.101.2
tomcat
SUSE:Linux Enterprise High Performance Computing 15-LTSS
before 9.0.36-150000.3.101.2
9.0.36-150000.3.101.2
tomcat
SUSE:Linux Enterprise Server 15-LTSS
before 9.0.36-150000.3.101.2
9.0.36-150000.3.101.2
tomcat
SUSE:Linux Enterprise Server for SAP Applications 15
before 9.0.36-150000.3.101.2
9.0.36-150000.3.101.2
tomcat
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS
before 9.0.36-150100.4.81.1
9.0.36-150100.4.81.1
tomcat
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS
before 9.0.36-150100.4.81.1
9.0.36-150100.4.81.1
tomcat
SUSE:Linux Enterprise Server 15 SP1-BCL
before 9.0.36-150100.4.81.1
9.0.36-150100.4.81.1
tomcat
SUSE:Linux Enterprise Server 15 SP1-LTSS
before 9.0.36-150100.4.81.1
9.0.36-150100.4.81.1
tomcat
SUSE:Linux Enterprise Server for SAP Applications 15 SP1
before 9.0.36-150100.4.81.1
9.0.36-150100.4.81.1
tomcat
SUSE:Enterprise Storage 6
before 9.0.36-150100.4.81.1
9.0.36-150100.4.81.1
tomcat
SUSE:Linux Enterprise Server 12 SP5-LTSS
before 9.0.115-3.160.1
9.0.115-3.160.1
tomcat
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
before 9.0.115-3.160.1
9.0.115-3.160.1
tomcat8
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
8.5.21-1ubuntu18.5.29-18.5.30-18.5.30-1ubuntu18.5.30-1ubuntu1.2
Show 11 moreShow less
8.5.30-1ubuntu1.38.5.30-1ubuntu1.48.5.39-1ubuntu1~18.04.18.5.39-1ubuntu1~18.04.28.5.39-1ubuntu1~18.04.38.5.39-1ubuntu1~18.04.3+esm18.5.39-1ubuntu1~18.04.3+esm28.5.39-1ubuntu1~18.04.3+esm38.5.39-1ubuntu1~18.04.3+esm48.5.39-1ubuntu1~18.04.3+esm58.5.39-1ubuntu1~18.04.3+esm6
None known
tomcat9
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
9.0.16-3~18.04.19.0.16-3ubuntu0.18.04.19.0.16-3ubuntu0.18.04.29.0.16-3ubuntu0.18.04.2+esm19.0.16-3ubuntu0.18.04.2+esm2
Show 6 moreShow less
9.0.16-3ubuntu0.18.04.2+esm39.0.16-3ubuntu0.18.04.2+esm49.0.16-3ubuntu0.18.04.2+esm59.0.16-3ubuntu0.18.04.2+esm69.0.16-3ubuntu0.18.04.2+esm79.0.16-3ubuntu0.18.04.2+esm8
None known
tomcat9
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
9.0.24-19.0.27-19.0.31-19.0.31-1ubuntu0.19.0.31-1ubuntu0.2
Show 10 moreShow less
9.0.31-1ubuntu0.39.0.31-1ubuntu0.49.0.31-1ubuntu0.59.0.31-1ubuntu0.69.0.31-1ubuntu0.79.0.31-1ubuntu0.89.0.31-1ubuntu0.99.0.31-1ubuntu0.9+esm19.0.31-1ubuntu0.9+esm29.0.31-1ubuntu0.9+esm3
None known
tomcat9
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
9.0.43-39.0.54-19.0.55-19.0.58-19.0.58-1ubuntu0.1
Show 9 moreShow less
9.0.58-1ubuntu0.1+esm19.0.58-1ubuntu0.1+esm29.0.58-1ubuntu0.1+esm39.0.58-1ubuntu0.1+esm49.0.58-1ubuntu0.29.0.58-1ubuntu0.2+esm19.0.58-1ubuntu0.2+esm29.0.58-1ubuntu0.2+esm39.0.58-1ubuntu0.2+esm4
None known
tomcat
openSUSE:Tumbleweed
before 9.0.43-11.1
9.0.43-11.1
tomcat10
openSUSE:Tumbleweed
before 10.1.14-1.1
10.1.14-1.1

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-43980 is a low vulnerability (CVSS 3.7) in Apache Tomcat, published September 28, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.36%, the 83rd percentile. Fixed in org.apache.tomcat:tomcat 8.5.78.

References

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This page doesn't list everything

Left out here: 28 versions. The JSON record has them.

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