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Product

Tomcat

Application by Apache, Apache Software Foundation

Apache Tomcat is a free and open-source implementation of the Jakarta Servlet, Jakarta Expression Language, and WebSocket technologies. It provides a "pure Java" HTTP web server environment in which Java code can also run. Thus it is a Java web application server, although not a full JEE application server.

CPE product name
tomcat
Registered on 2025-03-27, last updated on 2025-12-17.

Recent vulnerabilities

274 published under this product's CPE names in cvelistv5

CVE-2026-66422 (GCVE-0-2026-66422)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:55 – Updated: 2026-08-26 18:52
VLAI
Title
Apache Tomcat: Servlet role references can bypass declarative role constraints
Summary
Improper Authorization vulnerability in Apache Tomcat cause by security-role-ref definitions being incorrectly used as role aliases within the Realm in additional to the correct usage with Request.isUserInRole(). This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.25 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.46 through 8.5.100, from 7.0.97 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 18:52 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.25 , ≤ 9.0.120 (semver)
Affected: 8.5.46 , ≤ 8.5.100 (semver)
Affected: 7.0.97 , ≤ 7.0.109 (semver)
Unaffected: 0 , < 7.0.97 (semver)
Create a notification for this product.
Credits
4ra1n, pyn3rd and unam4
Show details on NVD website
To clipboard 

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CVE-2026-68525 (GCVE-0-2026-68525)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:57 – Updated: 2026-08-26 18:40
VLAI
Title
Apache Tomcat: Redirect after FORM auth may bypass method specific constraints
Summary
Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fixes the issue.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 18:40 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.120 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Affected: 7.0.0 , ≤ 7.0.109 (semver)
Unknown: 0 , < 7.0.0 (semver)
Create a notification for this product.
Credits
4ra1n, pyn3rd and unam4
Show details on NVD website
To clipboard 

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CVE-2026-68569 (GCVE-0-2026-68569)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:59 – Updated: 2026-08-26 18:38
VLAI
Title
Apache Tomcat: Principal lookup can fail open in some cases
Summary
Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances (e.g. CLIENT-CERT, SPNEGO) that a user would be authenticated even if the user did not exist in the DataSourceRealm. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 18:38 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.120 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Affected: 7.0.0 , ≤ 70.109 (semver)
Unknown: 0 , < 7.0.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-68763 (GCVE-0-2026-68763)

Vulnerability from cvelistv5 – Published: 2026-08-25 22:00 – Updated: 2026-08-26 18:36
VLAI
Title
Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset
Summary
Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog tracking when a stream is reset This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.39 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.59 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 18:36 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.39 , ≤ 9.0.120 (semver)
Affected: 8.5.59 , ≤ 8.5.100 (semver)
Unaffected: 0 , ≤ 7.0.109 (semver)
Create a notification for this product.
Credits
Zhen Kong
Show details on NVD website
To clipboard 

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CVE-2026-73180 (GCVE-0-2026-73180)

Vulnerability from cvelistv5 – Published: 2026-08-25 22:01 – Updated: 2026-08-26 18:35
VLAI
Title
Apache Tomcat: Authenticated WebSocket session survives end of HTTP session
Summary
Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 18:34 UTC
CWE
  • CWE-613 - Insufficient Session Expiration
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.120 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Affected: 7.0.43 , ≤ 7.0.109 (semver)
Unaffected: 0 , < 7.0.43 (semver)
Create a notification for this product.
Credits
0xCc.zhang
Show details on NVD website
To clipboard 

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CVE-2026-65927 (GCVE-0-2026-65927)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:53 – Updated: 2026-08-26 15:22
VLAI
Title
Apache Tomcat: RewriteValve [N] restarts at the second rule and may bypass access control
Summary
Off-by-one Error vulnerability in Apache Tomcat impacting the [N] flag on the rewrite valves causes rewrite processing to restart at the second rule rather than the first rule. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121 which fix the issue.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:21 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.120 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Unaffected: 7.0.0 , ≤ 7.0.109 (semver)
Unaffected: 0 , < 7.0.0 (semver)
Create a notification for this product.
Credits
4ra1n, pyn3rd and unam4
Show details on NVD website
To clipboard 

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CVE-2026-65905 (GCVE-0-2026-65905)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:51 – Updated: 2026-08-26 15:21
VLAI
Title
Apache Tomcat: Limited replay attack possible with DIGEST authentication
Summary
Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST authenticated request with a nonceCount on the upper boundary of the replay window then that request is replayable once only while the associated nonceCount remains within the replay window.   This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.30 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:20 UTC
CWE
  • CWE-294 - Authentication Bypass by Capture-replay
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.120 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Affected: 7.0.30 , ≤ 7.0.109 (semver)
Create a notification for this product.
Credits
4ra1n, pyn3rd and unam4
Show details on NVD website
To clipboard 

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CVE-2026-65637 (GCVE-0-2026-65637)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:49 – Updated: 2026-08-26 15:20
VLAI
Title
Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete
Summary
Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990. This issue affects Apache Tomcat: from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, from 9.0.115 through 9.0.120. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:20 UTC
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.20 , ≤ 11.0.24 (semver)
Affected: 10.1.53 , ≤ 10.1.57 (semver)
Affected: 9.0.115 , ≤ 9.0.120 (semver)
Create a notification for this product.
Credits
Parag Ambildhuke (https://github.com/paragxa)
Show details on NVD website
To clipboard 

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CVE-2026-65183 (GCVE-0-2026-65183)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:44 – Updated: 2026-08-26 15:19
VLAI
Title
Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets
Summary
Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat when creating unix domain sockets allows an unauthorised local user to access the unix domain socket. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.42 through 9.0.120. Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:18 UTC
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.42 , ≤ 9.0.120 (semver)
Unaffected: 8.5.0 , ≤ 8.5.100 (semver)
Unaffected: 7.0.0 , ≤ 7.0.109 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-65182 (GCVE-0-2026-65182)

Vulnerability from cvelistv5 – Published: 2026-08-25 21:43 – Updated: 2026-08-26 15:18
VLAI
Title
Apache Tomcat: Bypass longest prefix security constraint
Summary
Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:17 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.24 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.57 (semver)
Affected: 9.0.0.M1 , ≤ 9.0.120 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Affected: 7.0.0 , ≤ 7.0.109 (semver)
Unknown: 0 , < 7.0.0 (semver)
Create a notification for this product.
Credits
4ra1n, pyn3rd and unam4
Show details on NVD website
To clipboard 

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