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Vulnerabilities

Vulnerability · CVE-2025-49125

Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat.

Published Jun 16, 2025 · catalog updated Jun 17, 2026 · Authentication Bypass Using an

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-49125. EPSS is 3.44%. Act only if a listed version of Authentication Bypass Using an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Authentication Bypass Using an).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.44%
Remediation
Version ranges on file
Affected products
cpe apache/tomcat

Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat. When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/tomcat< 10.1.42
  • cpe apache/tomcat< 11.0.8
  • cpe apache/tomcat< 9.0.106

How to fix CVE-2025-49125

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-49125. EPSS is 3.44%. Act only if a listed version of Authentication Bypass Using an is installed.

Which versions are affected?

Compare what you have installed with < 10.1.42, < 11.0.8, < 9.0.106. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-288. EPSS 3.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Apache Tomcat security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 16, 2025 · Monitored products — critical

    Detected

    Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat. When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed. T

  2. Jun 17, 2026 · Monitored products — critical

    Updated

    Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat. When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed. T

Sources

  • CVE.orgVulnerability recordCVE-2025-49125

    Official CVE identifier

    cve.org
  • Monitored products — criticalVendor advisoryCVE-2025-49125

    Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat. When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed. T

    nvd.nist.gov
  • urlscan.ioThreat intelligenceCVE-2025-49125
    urlscan.io

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • urlscan.ioNov 6, 2026
  • CVE.orgNov 4, 2026
  • Monitored products — criticalNov 3, 2026