CVE-2025-52434

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.

Database specific

{
    "cwe_ids": [
        "CWE-362"
    ],
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "9.0.0.M1"
                },
                {
                    "last_affected": "9.0.106"
                },
                {
                    "introduced": "8.5.0"
                },
                {
                    "last_affected": "8.5.100"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "9.0.0.M1"
                },
                {
                    "fixed": "9.0.106"
                },
                {
                    "introduced": "8.5.0"
                },
                {
                    "fixed": "8.5.100"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52434.json",
    "cna_assigner": "apache"
}

References

Affected packages

Git / github.com/apache/tomcat

Affected ranges

Type

GIT

Repo

https://github.com/apache/tomcat

Events

Introduced

16bf392c67833ad549733b58c350ff92b5ee782a

Fixed

43d5ad023d2eee2ca162eded597a23afa0b92296

Database specific

{
    "cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.0.107"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-52434.json"