CVE-2025-46701Public exploitNetwork attack vector

Security constraint bypass via case-mismatched CGI paths

Published May 29, 2025 · Updated Nov 3, 2025

Improper case handling in Apache Tomcat allows remote attackers to bypass pathInfo security constraints on protected CGI resources. CGIServlet resolves a request path against a case-insensitive filesystem differently from the case-sensitive path used to apply security constraints. Exposure requires the disabled-by-default CGI servlet, a case-insensitive filesystem, and a constraint on URI pathInfo; a crafted URL reaches the protected resource without the intended authorization.

CVSS severity7.3
High
EPSS probability2.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper case handling in Apache Tomcat allows remote attackers to bypass pathInfo security constraints on protected CGI resources. CGIServlet resolves a request path against a case-insensitive filesystem differently from the case-sensitive path used to apply security constraints. Exposure requires the disabled-by-default CGI servlet, a case-insensitive filesystem, and a constraint on URI pathInfo; a crafted URL reaches the protected resource without the intended authorization.

The record

CVE
CVE-2025-46701
Published
May 29, 2025
Updated
Nov 3, 2025
Vendor
The Apache Software Foundation
Product
Apache Tomcat
Classifications
CWE-178, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.1.0-M1 <=10.1.40
  2. Affected versionversion=11.0.0-M1 <=11.0.6
  3. Affected versionversion=8.5.0 <=8.5.100
  4. Affected versionversion=9.0.0.M1 <=9.0.104

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Tomcatversion=10.1.0-M1 <=10.1.40; version=11.0.0-M1 <=11.0.6; version=8.5.0 <=8.5.100; version=9.0.0.M1 <=9.0.104

Published CVSS scores

4.8Amazon LinuxCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
1.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-178Improper Handling of Case Sensitivity
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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