CVE-2025-49125

Apache Tomcat: Security constraint bypass for pre/post-resources

HIGH
7.5
CVSS Score
Published: June 16, 2025 at 02:18 PM UTC
Updated: June 17, 2026 at 09:30 AM UTC
1 product affected across 1 vendorTomcat

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Severity
HIGH7.5
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.1.0 ≤ v < 10.1.4210.1.0-M1 ≤ v ≤ 10.1.4111.0.0 ≤ v < 11.0.811.0.0-M1 ≤ v ≤ 11.0.78.5.0 ≤ v ≤ 8.5.1009.0.0 ≤ v < 9.0.1069.0.0.M1 ≤ v ≤ 9.0.10510.1.0-M111.0.0-M18.5.09.0.0.M1
Affected range stops below 10.1.42, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.0.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.106, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 10.0.0-M1 (unknown)
Vendor states this is fixed in 8.0.0.RC1 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/06/16/2
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-288

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