CVE-2025-49125Network attack vector

Authentication bypass via partial webAppMount prefix match

Published Jun 16, 2025 · Updated Nov 3, 2025

Authentication bypass in affected Apache Tomcat releases allows remote attackers to read protected pre- or post-resources via crafted paths. AbstractArchiveResourceSet and DirResourceSet accepted any request path sharing the webAppMount string prefix without requiring a path-segment boundary. Exploitation requires a PreResources or PostResources mapping below the application root and a security constraint protecting only the intended path.

CVSS severity7.5
High
EPSS probability3.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in affected Apache Tomcat releases allows remote attackers to read protected pre- or post-resources via crafted paths. AbstractArchiveResourceSet and DirResourceSet accepted any request path sharing the webAppMount string prefix without requiring a path-segment boundary. Exploitation requires a PreResources or PostResources mapping below the application root and a security constraint protecting only the intended path.

The record

CVE
CVE-2025-49125
Published
Jun 16, 2025
Updated
Nov 3, 2025
Vendor
The Apache Software Foundation
Product
Apache Tomcat
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 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 <=10.1.41
  2. Affected versionversion=11.0.0-M1 <=11.0.7
  3. Affected versionversion=8.5.0 <=8.5.100
  4. Affected versionversion=9.0.0.M1 <=9.0.105

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Tomcatversion=10.1.0-M1 <=10.1.41; version=11.0.0-M1 <=11.0.7; version=8.5.0 <=8.5.100; version=9.0.0.M1 <=9.0.105

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.3GitHub Security AdvisoryCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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