Vulnerability DatabaseCVE-2026-88041
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CVE-2026-88041
Published:October 20, 2026
Updated:October 21, 2026
Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
Affected Packages
https://github.com/apache/tomcat.git (GITHUB):
Affected version(s) >=10.1.27 <10.1.61
Fix Suggestion:
Update to version 10.1.61
https://github.com/apache/tomcat.git (GITHUB):
Affected version(s) >=9.0.92 <9.0.123
Fix Suggestion:
Update to version 9.0.123
https://github.com/apache/tomcat.git (GITHUB):
Affected version(s) >=11.0.0-M23 <11.0.27
Fix Suggestion:
Update to version 11.0.27
org.apache.tomcat.experimental:tomcat-embed-programmatic (JAVA):
Affected version(s) >=10.1.28 <10.1.61
Fix Suggestion:
Update to version 10.1.61
org.apache.tomcat:tomcat-coyote (JAVA):
Affected version(s) >=9.0.93 <9.0.123
Fix Suggestion:
Update to version 9.0.123
org.apache.tomcat:tomcat-coyote (JAVA):
Affected version(s) >=11.0.0-M24 <11.0.27
Fix Suggestion:
Update to version 11.0.27
org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=10.1.28 <10.1.61
Fix Suggestion:
Update to version 10.1.61
org.apache.tomcat.experimental:tomcat-embed-programmatic (JAVA):
Affected version(s) >=9.0.93 <9.0.123
Fix Suggestion:
Update to version 9.0.123
org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=11.0.0-M24 <11.0.27
Fix Suggestion:
Update to version 11.0.27
org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=9.0.93 <9.0.123
Fix Suggestion:
Update to version 9.0.123
org.apache.tomcat.experimental:tomcat-embed-programmatic (JAVA):
Affected version(s) >=11.0.0-M24 <11.0.27
Fix Suggestion:
Update to version 11.0.27
org.apache.tomcat:tomcat-coyote (JAVA):
Affected version(s) >=10.1.28 <10.1.61
Fix Suggestion:
Update to version 10.1.61
Related Resources (3)
http://www.openwall.com/lists/oss-security/2026/10/20/24
https://nvd.nist.gov/vuln/detail/CVE-2026-88041
https://lists.apache.org/thread.html/dnmm9l3byytg3l66nk1jrqfrl7jty7n1
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Incomplete Cleanup
CWE-459
EPSS
Base Score:
0.26