// For flags

CVE-2025-46701

Apache Tomcat: Security constraint bypass for CGI scripts

Severity Score

7.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Improper Handling of Case Sensitivity vulnerability in Apache Tomcat's GCI servlet allows security constraint bypass of security constraints that apply to the pathInfo component of a URI mapped to the CGI servlet. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.6, from 10.1.0-M1 through 10.1.40, from 9.0.0.M1 through 9.0.104.
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 11.0.7, 10.1.41 or 9.0.105, which fixes the issue.

Improper Handling of Case Sensitivity vulnerability in Apache Tomcat's GCI servlet allows security constraint bypass of security constraints that apply to the pathInfo component of a URI mapped to the CGI servlet. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.6, from 10.1.0-M1 through 10.1.40, from 9.0.0.M1 through 9.0.104. Users are recommended to upgrade to version 11.0.7, 10.1.41 or 9.0.105, which fixes the issue.

It was discovered that Tomcat did not correctly handle case sensitivity. An attacker could possibly use this issue to bypass authentication mechanisms. 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.

*Credits: Greg K (https://github.com/gregk4sec)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-04-28 CVE Reserved
  • 2025-04-29 First Exploit
  • 2025-05-29 CVE Published
  • 2025-08-08 CVE Updated
  • 2025-08-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-178: Improper Handling of Case Sensitivity
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Tomcat
Search vendor "Apache Software Foundation" for product "Apache Tomcat"
 >= 11.0.0-M1 <= 11.0.6
Search vendor "Apache Software Foundation" for product "Apache Tomcat" and version " >= 11.0.0-M1 <= 11.0.6"
en
Affected
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Tomcat
Search vendor "Apache Software Foundation" for product "Apache Tomcat"
 >= 10.1.0-M1 <= 10.1.40
Search vendor "Apache Software Foundation" for product "Apache Tomcat" and version " >= 10.1.0-M1 <= 10.1.40"
en
Affected
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Tomcat
Search vendor "Apache Software Foundation" for product "Apache Tomcat"
 >= 9.0.0.M1 <= 9.0.104
Search vendor "Apache Software Foundation" for product "Apache Tomcat" and version " >= 9.0.0.M1 <= 9.0.104"
en
Affected
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Tomcat
Search vendor "Apache Software Foundation" for product "Apache Tomcat"
 >= 8.5.0 <= 8.5.100
Search vendor "Apache Software Foundation" for product "Apache Tomcat" and version " >= 8.5.0 <= 8.5.100"
en
Affected