CVE-2025-52434
published 2025-07-10CVE-2025-52434: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.
This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.
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 9.0.107, which fixes the issue.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | tomcat | >= 9.0.0 < 9.0.107 | 9.0.107 |
| apache_software_foundation | apache_tomcat | 8.5.0 – 8.5.100 | — |
| apache_software_foundation | apache_tomcat | 9.0.0.M1 – 9.0.106 | — |
| debian | tomcat9 | < tomcat9 9.0.70-2 (bookworm) | tomcat9 9.0.70-2 (bookworm) |
| msrc | cbl2_kernel_5.15.148.2-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.153.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH