CVE-2025-49125
Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.54% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-288
- Affected
- apache/tomcat
- Source
- security@apache.org
References
- https://lists.apache.org/thread/m66cytbfrty9k7dc4cg6tl1czhsnbywkMailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/06/16/2Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.